Merge branch 'dev' into f-trigger

CMakeLists.txt

conanfile.py

doc/CHANGELOG.md

include/CMakeLists.txt

include/caosdb/authentication.h

include/caosdb/certificate_provider.h

include/caosdb/configuration.h

include/caosdb/entity.h

include/caosdb/file_descriptor.h

include/caosdb/file_transmission/download_request_handler.h

include/caosdb/file_transmission/file_reader.h

...e/caosdb/file_transmission/register_file_upload_handler.h

include/caosdb/file_transmission/upload_request_handler.h

include/caosdb/logging.h

include/caosdb/transaction.h

include/caosdb/transaction_handler.h

include/caosdb/transaction_status.h

include/caosdb/unary_rpc_handler.h

include/caosdb/utility.h

proto