Adds Minidox Keyboard (#1487)

* merge

* line ending stuff

* Added MiniDox keyboard folder / configs / and some keymaps

* Updated minidox rev1 config, and readme. Also updated that_canadian keymap to include RGB

* cleaned up that_canadian keymap comments

* Fixed RGB being enabled by default, now it must be turned on at the keymap level

keyboards/minidox/split_util.h

@@ -0,0 +1,22 @@
+#ifndef SPLIT_KEYBOARD_UTIL_H
+#define SPLIT_KEYBOARD_UTIL_H
+
+#include <stdbool.h>
+
+#ifdef EE_HANDS
+	#define EECONFIG_BOOTMAGIC_END      (uint8_t *)10
+	#define EECONFIG_HANDEDNESS         EECONFIG_BOOTMAGIC_END
+#endif
+
+#define SLAVE_I2C_ADDRESS           0x32
+
+extern volatile bool isLeftHand;
+
+// slave version of matix scan, defined in matrix.c
+void matrix_slave_scan(void);
+
+void split_keyboard_setup(void);
+bool has_usb(void);
+void keyboard_slave_loop(void);
+
+#endif