Merge branch 'dev' into f-mypy

src/caosdb/connection/connection.py

src/caosdb/connection/encode.py

src/caosdb/connection/mockup.py

src/caosdb/connection/utils.py

src/caosdb/high_level_api.py

src/caosdb/schema-pycaosdb-ini.yml

src/caosdb/utils/caosdb_admin.py

src/caosdb/utils/plantuml.py

src/caosdb/utils/register_tests.py

src/caosdb/yamlapi.py

src/doc/conf.py

src/doc/configuration.md

src/doc/future_caosdb.md

src/doc/gallery/Makefile

src/doc/gallery/index.rst

src/doc/gallery/simulation.py

src/doc/gallery/simulation.rst

src/doc/high_level_api.org

src/doc/high_level_api.rst

src/doc/index.rst