Added some comments
Merge branch 'master' of https://github.com/cts2/lexevs-service

Conflicts:
	src/main/java/edu/mayo/cts2/framework/plugin/service/lexevs/service/codesystemversion/LexEvsCodeSystemVersionQueryService.java
Working on LexEvsEntityQueryService and also added LexEvsCodeSystemVersionReadServiceTestIT