Allow to set UUID of generic manager in config file
At every start of a villas controller, the UUID of the generic manager instance is newly created. This causes a lot of "garbage" generic manager IC components in the VILLASweb backend DB.
It would be helpful to optionally configure the UUID of the generic manager from outside e.g. through a config file. This way, the IC stored in the VILLASweb backend DB would simply be "revived" by using the same UUID as before and we would avoid a lot of garbage ICs.
This issue in the frontend is related: web#331 (closed)