Updates for all angular.io links to the new angular.dev domain. Additionally, adjustment to new resources where the equivalent does not exist on the new site (e.g. Tour of Heroes tutorial)
As Angular v15.2 deprecates class-based resolvers and guards, this commit switches the `functional` flag default value to `true`.
BREAKING CHANGE: `ng g resolver` and `ng g guard` now generate a functional resolver or guard by default. It is still possible to generate a (deprecated) class-based resolver or guard by using `ng g resolver --no-functional` or `ng g guard --no-functional`.
These async methods are a replacement for the Observable based `runSchematicAsync` and `runExternalSchematicAsync` methods.
DEPRECATED:
The Observable based `SchematicTestRunner.runSchematicAsync` and `SchematicTestRunner.runExternalSchematicAsync` method have been deprecated in favor of the Promise based `SchematicTestRunner.runSchematic` and `SchematicTestRunner.runExternalSchematic`.
Functional guards and resolvers were introduced in the Angular router in v14.2.
This commit adds the ability to generate functional router guards by
specifying `--guardType` instead of `--implements`. These guards are also
accompanied by a test that includes a helper function for executing the
guard in the `TestBed` environment so that any `inject` calls in the
guard will work properly. Functional resolvers are generated by adding
the `--functional` flag.
