WIP: files

src/caosdb/filestreaming/Client.cpp

src/caosdb/filestreaming/DownloadRequestHandler.cpp

src/caosdb/filestreaming/FileManager.cpp

src/caosdb/filestreaming/FileReader.cpp

src/caosdb/filestreaming/FileWriter.cpp

src/caosdb/filestreaming/LICENSE

src/caosdb/filestreaming/RequestStatus.cpp

src/caosdb/filestreaming/UploadRequestHandler.cpp

src/caosdb/transaction.cpp

test/caosdb_test_utility.h.in

test/test_data/test_caosdb_client.json

test/test_entity.cpp

test/test_transaction.cpp