[#891] added Mocking of iRODS to test_get_resource_file and some cleanup
[#891] added Mocking of iRODS to test_get_resource_file and some cleanup

FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,hydroshare/hydroshare,FescueFungiShare/hydroshare,RENCI/xDCIShare,RENCI/xDCIShare,RENCI/xDCIShare,ResearchSoftwareInstitute/MyHPOM,FescueFungiShare/hydroshare,hydroshare/hydroshare,RENCI/xDCIShare,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,hydroshare/hydroshare,hydroshare/hydroshare,RENCI/xDCIShare,ResearchSoftwareInstitute/MyHPOM,hydroshare/hydroshare,ResearchSoftwareInstitute/MyHPOM