Add watchOS as a supported destination

[tatsuky]

Hi, I'm new to this project. This PR adds the watchOS support for the supportedDestinations configuration, initially added in #1336.

Changes

• Added the watchOS case to the SupportedDestination enum.
• Added a configuration template for watchOS.
• Added test cases.

Tests

You can use the following example spec to verify the changes.

name: MyProject
options:
  bundleIdPrefix: com.myapp
targets:
  MyWatchKitApp:
    type: application
    platform: watchOS
    sources: [MyWatchKitApp]
    settings:
      MARKETING_VERSION: 1
      CURRENT_PROJECT_VERSION: 1
    dependencies:
      - target: MyFramework
    info:
      path: MyWatchKitApp/Info.plist
      properties:
        WKCompanionAppBundleIdentifier: com.myapp
        WKApplication: true
  MyFramework:
    type: framework
    supportedDestinations: [iOS, watchOS]
    platform: iOS
    sources: [MyFramework]
    settings:
      GENERATE_INFOPLIST_FILE: YES

Thanks.

[tatsuky]

Hi @yonaskolb and @amatig,
I'm wondering why the priorities are currently in this order and where watchOS should be. Any thoughts?

[tatsuky]

Adding test cases helped me realize this - TARGETED_DEVICE_FAMILY and SUPPORTED_PLATFORMS are ordered based on this priority. watchOS is 4, meaning it needs to be between tvOS (3) and visionOS (7).

[giginet]

Great contribution! I wished this feature 💯

I'll test this feature for my use case.

[giginet]

These tests can be parameterized tests to reduce redundancy.

But it's better existing test cases also become parameterized tests.
So I think it's good at this time.

[yonaskolb]

Thank you @tatsuky