[test] Add tests for database checking

tests/test_hivtb.py

tests/test_indian.py

tests/test_montgomery.py

tests/test_montgomery_shenzhen.py

tests/test_montgomery_shenzhen_indian.py

tests/test_montgomery_shenzhen_indian_padchest.py

tests/test_montgomery_shenzhen_indian_tbx11k.py

tests/test_nih_cxr14.py

tests/test_nih_cxr14_padchest.py

tests/test_padchest.py

tests/test_shenzhen.py

tests/test_tbpoc.py

tests/test_tbx11k.py