Keyboard: Add Tragicforce 68 (#3807)

* Fork MF68 to Tragicforce 68

* Set pinouts and key layout

* Reformat keymap, update comments/notes

* Cleanup rules.mk

keyboards/tragicforce68/tragicforce68.c

@@ -0,0 +1,8 @@
+#include "tragicforce68.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}