Adds test adapters for TypeScript and JavaScript only, exported
as part of the test_lib module. These work with the Jasmine test
framework, and allow use of the test injector within test blocks
via the `inject` function.
See #4572, #4177, #4035, #2783
This includes the TestComponentBuilder. It allows using the
test injector with Jasmine bindings, and waits for returned
promises before completing async test blocks.
Julie Ralph