Merged master branch.

.gitlab-ci.yml

arosics/CoReg.py

arosics/CoReg_local.py

arosics/DeShifter.py

arosics/Tie_Point_Grid.py

arosics/__init__.py

arosics/version.py

requirements.txt

requirements_dev.txt

requirements_pip.txt

setup.py

tests/CI_docker/build_arosics_testsuite_image.sh

tests/CI_docker/context/arosics_ci.docker

tests/CI_docker/context/environment_arosics.yml

tests/cases.py

tests/test_COREG.py

tests/test_COREG_LOCAL.py

tests/test_tie_point_grid.py