Add context() function and refactor osinfo

[SteveL-MSFT]

PR Summary

Add a new context() function that returns an object that contains both os info and security context. This can be used for condition: execution.

This involved refactoring osinfo where the main part is now a lib used by the function and the OSInfo resource. Updated OSinfo resource to version 1.0.0 as there's now a breaking change. Bitness is no longer a string, but instead is a number or not returned if it cannot be determined.

PR Context

Fix #1012

[Copilot]

Pull Request Overview

This PR introduces a new context() function that provides both OS information and security context for conditional execution. It also refactors the osinfo module by extracting shared functionality into a library.

• Creates a new context() function returning OS info and security context in a single object
• Refactors osinfo to use a shared library (osinfo_lib) for code reuse
• Updates OSInfo to version 1.0.0 with breaking changes to the bitness field format

Reviewed Changes

Copilot reviewed 9 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
osinfo/src/main.rs	Refactored to use the new osinfo_lib library instead of local config module
osinfo/Cargo.toml	Updated version to 1.0.0 and replaced direct dependencies with osinfo_lib
lib/osinfo_lib/src/lib.rs	New library with refactored OsInfo struct, removing $id field and changing bitness to Option
lib/osinfo_lib/cargo.toml	New cargo configuration for the osinfo library
dsc_lib/src/functions/mod.rs	Added the new context function to the function dispatcher
dsc_lib/src/functions/context.rs	New context function implementation
dsc_lib/Cargo.toml	Added osinfo_lib dependency
dsc/tests/dsc_functions.tests.ps1	Added test coverage for the new context function
build.ps1	Updated build script to include the new osinfo_lib

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}