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/keymaps/mb_via/config.h

@@ -0,0 +1,26 @@
+/*
+Copyright 2019 @foostan
+Copyright 2020 Drashna Jaelre <@drashna>
+Copyright 2021 Elliot Powell  <@e11i0t23>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS