* [Companion] Introduce new Boards class to further consolidate hardware metadata and remove some globals.
* [Companion] * RawSource::toString() and RawSwitch::toString() can now return custom hardware names (if given a GeneralSettings object) for the following types (respectively):
SOURCE_TYPE_STICK, SOURCE_TYPE_SWITCH, SWITCH_TYPE_SWITCH, & SWITCH_TYPE_MULTIPOS_POT;
* RawSource::isPot() and isSlider() can now return their own index position in potConfig[]/sliderConfig[];
* Switch indicator strings can be localized if necessary.
* [Companion] Refactor model printers to use new RawSource/RawSwitch capabilities; Simplify model-to-printer mapping scheme in multimodelprinter; Use const ModelData pointer.
* [Companion] Refactor how RawSource and RawSwitch selection combo boxes are populated, using cache-able data models instead of direct manipulation; Refactor some other Helpers function into their own namespace.
* Cosmetics & forgotten qualifier.
* Cosmetics before fixing #4400
* Cosmetics before fixing #4400
* Now one more conversion issue (SF => SH sources conversion from X9D to X7)
I don't know what is exactly the conversion issue as I don't have the original EEPROM, but I used this one for my tests, so I fix it
* Now we display correctly the corrupted mixers list so that copy/paste will work correctly (it was not consistent)
+ some cosmetics
* Test removed too quickly
* One global removed ;)
