Adds support for Planck Rev 6 (#2666)

* initial files for rev 6 with encoder

* music map init, dip scan added

* adds ws2812 driver for arm

* flesh out dip and encoder support

* adds default encoder res

* adds default encoder res

* start muse implementation

* muse working with encoder as control

* flip direction

* try mouse wheel again

* dont break other revs

* dont break other revs

* conditional autio

* pwm ws driver (not working)

* update build includes for chibios

* update ws2812 driver/config

* last commit for glasser code

* working example

* remove rgb for now

* finish up rev6

* working encoder keycodes

* add warnings to planck keymaps about the LAYOUT

keyboards/planck/keymaps/dlaroe/keymap.c

@@ -1,6 +1,7 @@
 // Can't Remember Sh*t Keymap for Planck
 // http://www.keyboard-layout-editor.com/#/gists/c6c0ac051b2b118a34ef84ebadab54c7
 
+#pragma message "You may need to add LAYOUT_planck_grid to your keymap layers - see default for an example"
 #include "planck.h"
 #include "action_layer.h"
 #ifdef AUDIO_ENABLE
@@ -74,8 +75,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   {KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,  KC_B,    KC_N,    KC_M,   KC_COMM, KC_DOT, KC_SLSH, SFT_T(KC_ENT) },
   {KC_LCTL, KC_LGUI, KC_BSLS, KC_LALT, LOWER, KC_SPC,  KC_SPC,  RAISE,  KC_LEFT, KC_DOWN, KC_UP, KC_RIGHT}
 },
- 
- 
+
+
 /* Game
  * ,-----------------------------------------------------------------------------------.
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