This commit has a few parts.

1: I added the Mockito mocking library to the BuildConfig.groovy. Mockito lets you make Mock objects and define their behavior for use in testing (see the test for an example).

2: I implemented the processor that turns a RichSequence into an Organism domain object.

3: I implemented an integration test that mocks out a RichSequence, hands it to the processor, then verifies that the processor created the correct Organism domain object in the test database.