Preparing for Teensy 3 (ARM) integration, abstracting code hierarchy

- Abstracted USB Module
- Abstracted compiler specific includes for Scan, Macro, Debug, and USB modules
- Updated CMake build files to support changes
- Added abstractions necessary to main.c as well as a compiler specific include file

Lib/MacroLib.h

@@ -0,0 +1,53 @@
+/* Copyright (C) 2013 by Jacob Alexander
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+// This include file decides which set of compiler family include files to use on typical Macro modules.
+// Additional includes should only be added to this file if they should be added to *all* Macro modules.
+
+
+// ----- Includes -----
+
+#ifndef __MACROLIB_H
+#define __MACROLIB_H
+
+// ARM
+#if defined(_mk20dx128_)
+
+#include <Lib/mk20dx128.h>
+#include <Lib/aliased_bitband.h>
+#include <Lib/delay.h>
+
+#endif
+
+
+
+// AVR
+#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_)
+
+#include <avr/interrupt.h>
+#include <util/delay.h>
+
+#endif
+
+
+#endif
+