Added delete service, delete app, detail app, refactor all code and some fix

proto/qkd_app.proto

src/qkd_app/client/QKDAppClient.py

src/qkd_app/service/QKDAppService.py

src/qkd_app/service/QKDAppServiceServicerImpl.py

src/qkd_app/service/__main__.py

src/qkd_app/service/database/QKDApp.py

src/qkd_app/service/database/models/QKDAppModel.py

src/qkd_app/service/database/models/_Base.py

src/qkd_app/service/database/models/enums/QKDAppStatus.py

src/qkd_app/service/database/models/enums/QKDAppTypes.py

src/qkd_app/service/database/uuids/QKDApp.py

src/qkd_app/service/database/uuids/_Builder.py

src/qkd_app/service/rest_server/RestServer.py

src/qkd_app/service/rest_server/qkd_app/Resources.py

...rvice/service/service_handlers/qkd/qkd_service_handler.py

src/service/service/task_scheduler/TaskExecutor.py

src/service/service/tools/ObjectKeys.py

src/tests/tools/mock_qkd_nodes/start.sh

src/tests/tools/mock_qkd_nodes/wsgi.py

src/webui/service/qkd_app/routes.py