* feat: support progress, fan, pointer sensor types
Initial implementation, not yet fully working.
* only use one rendering layer per sensor type instead one per sensor
Each layer uses > 1 MB and a panel can contain easily over 20 sensors!
* support custom panels with --panels cli argument
This includes one or more additional custom panels into the base
configuration. Multiple --panels arguments are supported
* update docs
Markus Zehnder
