needs a full revamp based on learnings to date on how ams mappings should work.

- available mapping entries are based on the filaments loaded in BS when the model is sliced
- a mapping value of
-1 means no AMS spool is selected for that filament entry
- populated values correspond to the AMS slot # (base 0) for that filament entry
- mapping entries are plate specific
needs a full revamp based on learnings to date on how ams mappings should work.
-1means no AMS spool is selected for that filament entry