Move CAS test suite data into separate artifact #312
Description
Describe the refactoring action
Currently, the CAS test suite data is part of uimaj-core. UIMA 3.3.0 shipped the tests artifact to Maven Central, but apparently 3.4.1 no longer does that.
Expected benefit
Having the CAS test suite data in a separate artifact removes the need to ship the tests artifact and makes the test suite more easily accessible by downstream projects like uima-uimaj-io-jsoncas.