[UIMA-3346] "generate" goal should include type system imports

- Applied UIMA-3346.2.patch from Jacob Carter
- Removed changes in whitespace-only lines
- Renamed new parameter to "addTypeSystemDescriptions"
- Improved description of the new parameter for adding type system descriptions
- Added plugin integration test for embedding the type systems in the descriptor
- Removed option to add type systems by-name since it wasn't working when I tried setting up an integration test


git-svn-id: https://svn.apache.org/repos/asf/uima/uimafit/trunk@1809048 13f79535-47bb-0310-9956-ffa450edef68
9 files changed