Cleanup: MALTRON_KW dropped.
Docs : Hardware matrix display of RedTilt and HyperNano
Docs : Hardware matrix display of BlueCube
Docs : Hardware matrix display of HyperNano fixed numbers
Docs : Hardware matrix display of HyperNano fixed numbers
DEBUG Cleanup obsolete keymap comments
KEYMAP macro: remove outer thumbkeys that are unused (_no) to simplify matrix.
Cleanup: Common defines can be reused.
Layout: Modified BU-TECK is default, AdNW only alternate layer.
KEYMAP: more descriptive macro for RedTilt
KEYMAP : Macro for RedTilt verbose.
KEYMAP : Macro for BlueCube verbose.
KEYMAP : Macro for HyperNano verbose.
KEYMAP cleanup: Removed obsolete comments and snippets and cleaned up usage.

Also added better textual descriptions of the keycode to matrix mapping and
some ascii drawings of the various hardware boards supported.

* keymap_cleanup:
  KEYMAP : Macro for HyperNano verbose.
  KEYMAP : Macro for BlueCube verbose.
  KEYMAP : Macro for RedTilt verbose.
  KEYMAP: more descriptive macro for RedTilt
  Layout: Modified BU-TECK is default, AdNW only alternate layer.
  Cleanup: Common defines can be reused.
  KEYMAP macro: remove outer thumbkeys that are unused (_no) to simplify matrix.
  DEBUG Cleanup obsolete keymap comments
  Docs : Hardware matrix display of HyperNano fixed numbers
  Docs : Hardware matrix display of HyperNano fixed numbers
  Docs : Hardware matrix display of BlueCube
  Docs : Hardware matrix display of RedTilt and HyperNano
  Cleanup: MALTRON_KW dropped.
Cleanup: fix warnings
main loop: __attribute__ ((noreturn))
cleanup: re-use clearRowData()
Pinkydrop only on HyperNano, all other boards are ergonomic enough
Cleanup: globals are automatically initialized