Add manifest.yaml
Add DockerFile

Solve some typo on .proto file

- Updated to use gunicorn as WGSI HTTP server
- Removed gRPC client/server as it was unused
- Added WebSocket Flask-SocketIO
- Implemented Heartbeat endpoint based on WebSocket
- Other minor framework and WebUI fixes

- Added/Updated headers
- Added script to update copyright headers

- Moved imports from *.proto folder to common.proto folder
- Removed compute's genproto.sh script
- Minor code and linting fixing
- Arranged requirements to accelerate Docker image creation
- Updated Dockerfile
- Arranged GitLab CI/CD pipeline

- Migrated to use new generic gRPC servicer
- Migrated to use new generic Rest servicer
- Migrated to use new settings framework
- Minor code formatting/styling

This reverts merge request !3

Move database to common folder, since it will be used also by device service, and implement very minor changes.