Move Ergodox EZ RGB Light code to custom driver (#7309)

* Move Ergodox EZ RGB code to custom driver

Also implements full addressing of Ergodox EZ's LED Strip, as written by seebs
Co-authored-by: Seebs <seebs@seebs.net>

* Make Clipping range accessible for custom drivers

* Remove RGBW_BB_TWI from driver and docs

* Revert changes to clipping range support

* Use just rgblight_set instead of full custom driver

* Convert to i2c_master commands

* Rename rgblight driver and clean up includes

1 files changed, 8 insertions, 4 deletions

diff --git a/keyboards/ergodox_ez/config.h b/keyboards/ergodox_ez/config.h
index bb51ec321..e60101e5e 100644
--- a/keyboards/ergodox_ez/config.h
+++ b/keyboards/ergodox_ez/config.h
@@ -75,17 +75,21 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D7
 #define RGBLIGHT_ANIMATIONS
-#define RGBLED_NUM 15     // Number of LEDs
 #define RGBLIGHT_HUE_STEP 12
 #define RGBLIGHT_SAT_STEP 255
 #define RGBLIGHT_VAL_STEP 12
 
+// Pick one of the modes
+// Defaults to 15 mirror, for legacy behavior
+
+// #define ERGODOX_LED_15 // Addresses 15 LEDs, but same position on both halves
+// #define ERGODOX_LED_15_MIRROR // Addresses 15 LEDs, but are mirrored
+// #define ERGODOX_LED_30 // Addresses all 30 LED individually
+
 /* fix space cadet rollover issue */
 #define DISABLE_SPACE_CADET_ROLLOVER
 
-#define RGBW_BB_TWI
-
-#define RGBW 1
+#define RGBW
 
 #define RGBLIGHT_SLEEP