Clueboard 60% support (#1746)

* initial clueboard_60 support

* LED lighting support

* fix the clueboard->clueboard_66 rename

* Add layout support to clueboard_60

* Fix the 60_iso layout so it's actually iso

* add a default keymap for AEK layout

* fix clueboard_17

* Fixup the ISO layouts

* Fix the `wait_ms()/wait_us()` definitions for chibios

* Fix up the wait_ms/wait_us hack. Reduce stack size.

* Add a missing #include "wait.h"

* commit files that should have already been comitted

quantum/audio/luts.c

@@ -14,9 +14,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <avr/pgmspace.h>
 #include "luts.h"
 
 const float vibrato_lut[VIBRATO_LUT_LENGTH] =