Add support for the crkbd r2g by mechboards (#15283)

* r2g folder groundwork

* Default mb keymap featuring mb logos

* Migrate Oled to keyboard folder

* Move rules configs to support config better

* update readmes

* Liscnece update

* Update config and fix issues caused by redef errs

* funciton name adjusts, define specific rgb modes

* move default oled font to postconfig

* update oled in line with develop merge

* fix return value

* Add some default rgb matrix defines

* del ugfx

* remove #include <stdio.h>

keyboards/crkbd/crkbd.h

@@ -20,5 +20,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifdef KEYBOARD_crkbd_rev1
 #    include "rev1.h"
 #endif
+#ifdef KEYBOARD_crkbd_r2g
+#    include "r2g.h"
+#endif
+
 
 #include "quantum.h"