Merge pull request #243 in CASA/casa6 from CAS-13237 to release/6.1.2
* commit 'a742121ad0bb5f16eec817e4077e044731841b55':
Fixed typo in tec_maps import and removed casa6 skip for tec_maps test
add tec_maps to casatasks.private (CAS-13040)
For CAS-13040, following previos commit, copy new (tec-aware) test_gencal.py to casa6/casatasks/tests/tasks/
For CAS-13040: add tec_maps.py to casa6/casatasks/src/scripts/ for casa6 support, associated change to test_gencal.py
For CAS-13040: Updated CDDIS retrieval mechanism to conform to new standards, improved print messaging, other python cleanup, python3-ification for CASA 6; added a very basic test to gencal for caltype='tecim' (but disabled in CASA6 for now)
For CAS-13040: Updated CDDIS retrieval mechanism to conform to new standards, improved print messaging, other python cleanup, python3-ification for CASA 6; added a very basic test to gencal for caltype='tecim' (but disabled in CASA6 for now)