refactor(model): Make tests independent of Maven or SBT package managers

Avoid dependencies on expected results by copying them as a preparation
for the Maven and SBT package manager implementations being moved. Apply
some trivial formatting changes in related code along the way.

Signed-off-by: Sebastian Schuberth <[email protected]>

Author: sschuberth

model/src/test/assets/maven-expected-output-app.yml

@@ -0,0 +1,190 @@
+---
+project:
+  id: "Maven:org.ossreviewtoolkit.maven:maven-app:1.0-SNAPSHOT"
+  definition_file_path: "plugins/package-managers/maven/src/funTest/assets/projects/synthetic/maven/app/pom.xml"
+  authors:
+  - "Google"
+  - "The Apache Software Foundation"
+  declared_licenses:
+  - "Apache License, Version 2.0"
+  declared_licenses_processed:
+    spdx_expression: "Apache-2.0"
+    mapped:
+      Apache License, Version 2.0: "Apache-2.0"
+  vcs:
+    type: "Git"
+    url: "https://example.com/git/repository.git"
+    revision: ""
+    path: ""
+  vcs_processed:
+    type: "Git"
+    url: "<REPLACE_URL_PROCESSED>"
+    revision: "<REPLACE_REVISION>"
+    path: "plugins/package-managers/maven/src/funTest/assets/projects/synthetic/maven/app"
+  homepage_url: "http://maven.apache.org"
+  scopes:
+  - name: "compile"
+    dependencies:
+    - id: "Maven:org.ossreviewtoolkit.maven:maven-lib:1.0-SNAPSHOT"
+      linkage: "PROJECT_DYNAMIC"
+      dependencies:
+      - id: "Maven:org.apache.beam:beam-parent:2.3.0"
+      - id: "Maven:org.apache.commons:commons-text:1.1"
+        dependencies:
+        - id: "Maven:org.apache.commons:commons-lang3:3.5"
+      - id: "Maven:org.jenkins-ci:version-number:1.4"
+packages:
+- id: "Maven:org.apache.beam:beam-parent:2.3.0"
+  purl: "pkg:maven/org.apache.beam/[email protected]"
+  authors:
+  - "Apache Software Foundation"
+  - "The Apache Software Foundation"
+  declared_licenses:
+  - "Apache License, Version 2.0"
+  declared_licenses_processed:
+    spdx_expression: "Apache-2.0"
+    mapped:
+      Apache License, Version 2.0: "Apache-2.0"
+  description: "Apache Beam provides a simple, Java-based interface\n  for processing\
+    \ virtually any size data. This artifact includes the parent POM\n  for other\
+    \ Beam artifacts."
+  homepage_url: "http://beam.apache.org/"
+  binary_artifact:
+    url: "https://repo.maven.apache.org/maven2/org/apache/beam/beam-parent/2.3.0/beam-parent-2.3.0.pom"
+    hash:
+      value: "9e1ed0d1f714b13d0625fc9feb1410a7a2250424"
+      algorithm: "SHA-1"
+  source_artifact:
+    url: "https://repo.maven.apache.org/maven2/org/apache/beam/beam-parent/2.3.0/beam-parent-2.3.0.pom"
+    hash:
+      value: "9e1ed0d1f714b13d0625fc9feb1410a7a2250424"
+      algorithm: "SHA-1"
+  vcs:
+    type: "Git"
+    url: "https://gitbox.apache.org/repos/asf/beam.git"
+    revision: "v2.3.0-RC3"
+    path: ""
+  vcs_processed:
+    type: "Git"
+    url: "https://gitbox.apache.org/repos/asf/beam.git"
+    revision: "v2.3.0-RC3"
+    path: ""
+  is_metadata_only: true
+- id: "Maven:org.apache.commons:commons-lang3:3.5"
+  purl: "pkg:maven/org.apache.commons/[email protected]"
+  authors:
+  - "Benedikt Ritter"
+  - "Carman Consulting, Inc."
+  - "CollabNet, Inc."
+  - "Duncan Jones"
+  - "Fredrik Westermarck"
+  - "Gary D. Gregory"
+  - "Henri Yandell"
+  - "Joerg Schaible"
+  - "Loic Guibert"
+  - "Matt Benson"
+  - "Niall Pemberton"
+  - "Oliver Heger"
+  - "Paul Benedict"
+  - "Rob Tompkins"
+  - "Robert Burrell Donkin"
+  - "SITA ATS Ltd"
+  - "Steven Caswell"
+  - "The Apache Software Foundation"
+  declared_licenses:
+  - "Apache License, Version 2.0"
+  declared_licenses_processed:
+    spdx_expression: "Apache-2.0"
+    mapped:
+      Apache License, Version 2.0: "Apache-2.0"
+  description: "Apache Commons Lang, a package of Java utility classes for the\n \
+    \ classes that are in java.lang's hierarchy, or are considered to be so\n  standard\
+    \ as to justify existence in java.lang."
+  homepage_url: "http://commons.apache.org/proper/commons-lang/"
+  binary_artifact:
+    url: "https://repo.maven.apache.org/maven2/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5.jar"
+    hash:
+      value: "6c6c702c89bfff3cd9e80b04d668c5e190d588c6"
+      algorithm: "SHA-1"
+  source_artifact:
+    url: "https://repo.maven.apache.org/maven2/org/apache/commons/commons-lang3/3.5/commons-lang3-3.5-sources.jar"
+    hash:
+      value: "f7d878153e86a1cdddf6b37850e00a9f8bff726f"
+      algorithm: "SHA-1"
+  vcs:
+    type: "Git"
+    url: "http://git-wip-us.apache.org/repos/asf/commons-lang.git"
+    revision: "LANG_3_5"
+    path: ""
+  vcs_processed:
+    type: "Git"
+    url: "http://git-wip-us.apache.org/repos/asf/commons-lang.git"
+    revision: "LANG_3_5"
+    path: ""
+- id: "Maven:org.apache.commons:commons-text:1.1"
+  purl: "pkg:maven/org.apache.commons/[email protected]"
+  authors:
+  - "Benedikt Ritter"
+  - "Bruno P. Kinoshita"
+  - "Gary Gregory"
+  - "Rob Tompkins"
+  - "The Apache Software Foundation"
+  declared_licenses:
+  - "Apache License, Version 2.0"
+  declared_licenses_processed:
+    spdx_expression: "Apache-2.0"
+    mapped:
+      Apache License, Version 2.0: "Apache-2.0"
+  description: "Apache Commons Text is a library focused on algorithms working on\
+    \ strings."
+  homepage_url: "http://commons.apache.org/proper/commons-text/"
+  binary_artifact:
+    url: "https://repo.maven.apache.org/maven2/org/apache/commons/commons-text/1.1/commons-text-1.1.jar"
+    hash:
+      value: "c336bf600f44b88af356c8a85eef4af822b06a4d"
+      algorithm: "SHA-1"
+  source_artifact:
+    url: "https://repo.maven.apache.org/maven2/org/apache/commons/commons-text/1.1/commons-text-1.1-sources.jar"
+    hash:
+      value: "f0770f7f0472bf120ada47beecadce4056fbd20a"
+      algorithm: "SHA-1"
+  vcs:
+    type: "Git"
+    url: "http://git-wip-us.apache.org/repos/asf/commons-text.git"
+    revision: ""
+    path: ""
+  vcs_processed:
+    type: "Git"
+    url: "http://git-wip-us.apache.org/repos/asf/commons-text.git"
+    revision: ""
+    path: ""
+- id: "Maven:org.jenkins-ci:version-number:1.4"
+  purl: "pkg:maven/org.jenkins-ci/[email protected]"
+  declared_licenses:
+  - "MIT License"
+  declared_licenses_processed:
+    spdx_expression: "MIT"
+    mapped:
+      MIT License: "MIT"
+  description: ""
+  homepage_url: "http://jenkins-ci.org/version-number/"
+  binary_artifact:
+    url: "https://repo.jenkins-ci.org/releases/org/jenkins-ci/version-number/1.4/version-number-1.4.jar"
+    hash:
+      value: "5d0f2ea16514c0ec8de86c102ce61a7837e45eb8"
+      algorithm: "SHA-1"
+  source_artifact:
+    url: "https://repo.jenkins-ci.org/releases/org/jenkins-ci/version-number/1.4/version-number-1.4-sources.jar"
+    hash:
+      value: "ab4e04d731d43157f66d80e4a5daef33ce24f0c2"
+      algorithm: "SHA-1"
+  vcs:
+    type: "Git"
+    url: "git://github.com/jenkinsci/lib-version-number.git"
+    revision: "version-number-1.4"
+    path: ""
+  vcs_processed:
+    type: "Git"
+    url: "https://github.com/jenkinsci/lib-version-number.git"
+    revision: "version-number-1.4"
+    path: ""