* ISY994 Structure updates in prep for PyISYv2 (Part 1)
- Correct node categorization.
- Move constants to separate file.
- Consolidate Logging to Constants file.
- Use Home Assistant Constants where possible.
- Use string literals where possible.
- Rename "domain" to "platform" in most places.
- Add additional device support (NODE_FILTER updates).
* Update categorize_programs per review
* add @shbatm as codeowner for ISY994 integration
shbatm
Erik Montnemery
Paulus Schoutsen
Paulus Schoutsen
Fabian Affolter