chore: release 19.0.0

[release-please]

🤖 I have created a release *beep* *boop*

19.0.0 (2020-08-09)

⚠ BREAKING CHANGES

• adds support for ESM and Deno (feat!: adds support for ESM and Deno #295)
• ts: projects using @types/yargs-parser may see variations in type definitions.
• drops Node 6. begin following Node.js LTS schedule (build!: drops Node 6. begin following Node.js LTS schedule #278)

Features

• adds support for ESM and Deno (#295) (195bc4a)
• expose camelCase and decamelize helpers (#296) (39154ce)
• deps: update to latest camelcase/decamelize (#281) (8931ab0)

Bug Fixes

• boolean numeric short option (#294) (f600082)
• raise permission error for Deno if config load fails (#298) (1174e2b)
• deps: update dependency decamelize to v3 (#274) (4d98698)
• types: switch back to using Partial types (#293) (bdc80ba)

Build System

• drops Node 6. begin following Node.js LTS schedule (#278) (9014ed7)

Code Refactoring

• ts: move index.js to TypeScript (#292) (f78d2b9)

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This PR was generated with Release Please.

[bcoe]

we should wait for any breaking changes required for the TypeScript conversion before merging this.

[publish-bot]

A candidate release, 19.0.0-beta.0 was published to npm. Run npm install yargs-parser@next to install.

[publish-bot]

A candidate release, 19.0.0-beta.1 was published to npm. Run npm install yargs-parser@next to install.