generate a submodule to run pankti-generated test cases

[gluckzhang]

We may generate a submodule that contains all the pankti-generated test cases. The benefits of doing so include:

• A good separation between original test cases and pankti-generated
• Only Test*PanktiGen.java and object-data.xml need to be copied to the submodule, because this module depends on all the original submodules
• No need to modify original pom files, because only this module needs xstream as a dependency

This is an example that I manually did for TTorrent: https://github.com/gluckzhang/ttorrent/tree/ttorrent-2.0-pankti

What I did in this example:

• mkdir pankti-tests and add <module>pankti-tests</module> in the root pom.xml
• create a pom file for submodule pankti-tests, add all of the original submodules as its dependencies, add xstream as its dependency as well: https://github.com/gluckzhang/ttorrent/blob/ttorrent-2.0-pankti/pankti-tests/pom.xml
• put the pankti-generated test files in src/test/java, put the object data xml files in src/test/resources

cd path/to/pankti/pankti-generate/output/generated/ttorrent
find . -type f -name "Test*PanktiGen.java" -exec cp --parents {} path/to/ttorrent/pankti-tests/src/test/java \;
cp *.xml path/to/ttorrent/pankti-tests/src/test/resources

This is for the convenience of our experiments. At last we might still put the generated test cases in the original submodules to create a PR.

[Deee92]

This was really useful @gluckzhang! Thanks!