Merge branch 'STM_container' into 'develop'

.gitlab-ci.yml

docker/sts/Dockerfile

docker/sts/docker-compose.yml

docker/sts/example/NotebookForSTM_STS_CONVERTER.ipynb

docker/sts/example/README.md

docker/sts/example/STM_nanonis_generic_4_5.sxm

docker/sts/example/STM_nanonis_generic_5e.sxm

docker/sts/example/STS.scheme.archive.yaml

docker/sts/example/STS_nanonis_generic_4_5.dat

docker/sts/example/STS_nanonis_generic_5e_1.dat

docker/sts/example/STS_nanonis_generic_5e_2.dat

docker/sts/example/config_file_for_dat.json

docker/sts/example/config_file_for_sxm.json

docker/sts/example/eln_data.yaml

docker/sts/generate_requirements.sh

docker/sts/requirements.in

docker/sts/requirements.txt