This adds support to the existing, shallow fakeplugin mocks provided by:
- advanced_testcase::add_mocked_plugintype() and
- advanced_testcase::add_mocked_plugin()
and adds new methods for deep mocking fakeplugins:
- advanced_testcase::add_full_mocked_plugintype()
- advanced_testcase::deprecate_full_mocked_plugintype()
- advanced_testcase::delete_full_mock_plugintype()
Deep mocking is required to test \core\component itself.
Andrew Nicols