Adding McHCK DFU Bootloader

- Heavily modified, not compatible with McHCK images
- Uses 4k of Flash (rather than 3k)
- LED turns on when in firmware flash mode
- Changed the USB IDs
- Added CMake build system
- Updated linker script to be closer to what is used for the rest of the projects
- Removed a lot of unnecessary code
- Added a license header to each file (using the same license as the McHCK had)
- Updated the USB Vendor, Product and Serial strings
- Using the Kiibohd initialization sequence rather than the McHCK one
- Using Kiibohd interrupt vector table and other misc mk20dx setup

Bootloader/mchck.h

@@ -0,0 +1,49 @@
+/* Copyright (c) 2011,2012 Simon Schubert <2@0x2c.org>.
+ * Modifications by Jacob Alexander 2014 <haata@kiibohd.com>
+ *
+ * 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 3 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/>.
+ */
+
+#ifndef __MCHCK_H
+#define __MCHCK_H
+
+// ----- Compiler Includes -----
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <stdfix.h>
+#include <stdarg.h>
+
+
+
+// ----- Project Includes -----
+
+#include <mk20dx.h>
+
+
+
+// ----- Local Includes -----
+
+#include "mchck-cdefs.h"
+
+extern uint32_t _sidata, _sdata, _edata, _sbss, _ebss, _app_rom;
+
+#include "ftfl.h"
+#include "usbotg.h"
+#include "sim.h"
+#include "flash.h"
+#include "usb.h"
+
+#endif
+