feat(spectacular)!: release 15.0.0-alpha.0

[LayZeeDK]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: CONTRIBUTING.md#commit
• 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
[x] Feature
[ ] Code style update (formatting, local variables)
[x] Refactoring (no functional changes, no api changes)
[x] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Build

1. Node.js 16.20
2. Nx 15.1
3. Angular 14.0
4. Angular CLI 14.2
5. TypeScript 4.6

Features

1. SpectacularAppComponent is a classic Angular component
2. Passing InjectFlags to SpectacularApplicationHarness#inject is supported
3. Passing InjectOptions to SpectacularApplicationHarness#inject is unsupported
4. Passing InjectFlags to SpectacularFeatureHarness#inject is supported
5. Passing InjectOptions to SpectacularFeatureHarness#inject is unsupported
6. Passing InjectFlags to SpectacularPipeHarness#inject is supported
7. Passing InjectOptions to SpectacularPipeHarnes#inject is unsupported

Refactors

1. The pipe testing harness uses Angular's internal ɵisStandalone function

Testing

1. Most test suites use beforeEach hooks and shared variables

Issue Number: N/A

What is the new behavior?

Build

1. Node.js 18.17
2. Nx 15.9
3. Angular 15.0
4. Angular CLI 15.2
5. TypeScript 4.8

Features

1. SpectacularAppComponent is a standalone Angular component
2. Passing InjectFlags to SpectacularApplicationHarness#inject is deprecated in favor of passing InjectOptions
3. Passing InjectOptions to SpectacularApplicationHarness#inject is supported
4. Passing InjectFlags to SpectacularFeatureHarness#inject is deprecated in favor of passing InjectOptions
5. Passing InjectOptions to SpectacularFeatureHarness#inject is supported
6. Passing InjectFlags to SpectacularPipeHarnes#inject is deprecated in favor of passing InjectOptions
7. Passing InjectOptions to SpectacularPipeHarnes#inject is supported

Refactors

1. The pipe testing harness uses either Angular's internal ɵisStandalone function (Angular 15.0) or Angular's public isStandalone function (15.1-15.2) to support all Angular 15.x versions

Testing

1. Most test suites use SIFERS

Does this PR introduce a breaking change?

[x] Yes
[ ] No

BREAKING CHANGES

• Require Angular 15.0
• SpectacularAppComponent is a standalone Angular component

DEPRECATIONS

• Passing InjectFlags to SpectacularApplicationHarness#inject is deprecated in favor of passing InjectOptions
• Passing InjectFlags to SpectacularFeatureHarness#inject is deprecated in favor of passing InjectOptions
• Passing InjectFlags to SpectacularPipeHarnes#inject is deprecated in favor of passing InjectOptions

Other information