Use Angular CLI, ng-packagr

[denysoblohin-okta]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Adding Tests
• Build related changes
• CI related changes
• Documentation changes
• Other... Please describe:

What is the current behavior?

Currently library is building with custom build script, with help of rollup and patching final package.json

Issue Number: OKTA-567265

What is the new behavior?

• Migrated to ng-packagr which produces dist in Angular Package Format (APF) as described in official guide to creating libraries. Added angular.json to root with configuration for ng build and ng test (Jest tests, with help of @angular-builders/jest)
• Library code moved to lib folder, which contains ng-package.json, package.json (without devDependencies and unnecessary scripts) which is used as source for building to dist
• Test apps are also configured to run Jest tests with ng test (with help of @angular-builders/jest)

Does this PR introduce a breaking change?

• Yes
• No

Other information

Reviewers

[alisaduncan]

Exciting! Happy to also see the Jest builder changes! 💃🏼