[Keyboard] Add Orbit keyboard (#5306)

* Get things working except indicators

* Attempt to get things working

* hmm

* Compiles but doesn't run

* Make data transfer work

* Get all indicators working

* Remove old transport

* Prepare for pullreq

* Revert keymap from testing to production

* Final error checking for pull request

* Remove autogenerated is_command from config.h

* Rewrite pin toggles using qmk functions

keyboards/ai03/orbit/split_util.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+extern volatile bool isLeftHand;
+
+void matrix_master_OLED_init (void);