* clean up rgb matrix extern usage
Moved rgb matrix boiler plate into macros
Rebased onto typing heatmap pr
* Fixing the reversed frame buffer access in digital rain
* Fixing digital rain & typing heatmap if keyreactive effects are not enabled
* Apply suggestions from code review
Co-Authored-By: Drashna Jaelre <drashna@live.com>
* Adding parenthesizes to DRIVER_LED_TOTAL where necessary
* Updated docs
* added notes about parentheses
* Initial conversion of the rgb_led struct
* Converting last keyboard & updating effects to take advantage of the new structure
* New struct should not be const
* Updated docs
* Changing define ___ for no led to NO_LED
* Missed converting some keymap usages of the old struct layout
