Add teensy revision folder for Orthodox Rev3 (#2510)

* Add Rev3 Teensy for Orthodox

* MOve bootloader defines into revision folders

* Finishing touches

keyboards/orthodox/rev3_teensy/rev3_teensy.c

@@ -0,0 +1,35 @@
+/*
+This is the source file for the subproject
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+Copyright 2017 Art Ortenburger
+
+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/>.
+*/
+
+#include "orthodox.h"
+
+void matrix_init_kb(void) {
+
+  //// // green led on
+  //// DDRD |= (1<<5);
+  //// PORTD &= ~(1<<5);
+
+  //// // orange led on
+  //// DDRB |= (1<<0);
+  //// PORTB &= ~(1<<0);
+
+  matrix_init_user();
+};