Fixing RAM calculator and reduced actual SRAM usage

- Changed static variables to const that should have been const
- Updated CMake files to prepare for MCHCK custom bootloader
- Changed the USB ID numbers and ID number for bootloader
- Only generate DFU or Teensy binary image, not both
- Fixed RAM and FLASH calculator
- Added missing license in delay.c/h (much of it was taken from Teensy source though I've changed a bunch of it)
- Prepared mk20dx.c for upcoming bootloader addition
- mk20dx.h cleanup
- Reduced the MCHCK based flash size for the application image (bootloader changes requires more flash space)
- Fixed bugs in macro.c
- Added keyHold cli command
- Added show pending events debug message for PartialMap macro module

Scan/MatrixARM/matrix_scan.c

@@ -49,8 +49,8 @@ void cliFunc_matrixState( char* args );
 // ----- Variables -----
 
 // Scan Module command dictionary
-char*       matrixCLIDictName = "Matrix Module Commands";
-CLIDictItem matrixCLIDict[] = {
+const char matrixCLIDictName[] = "Matrix Module Commands";
+const CLIDictItem matrixCLIDict[] = {
 	{ "matrixDebug",  "Enables matrix debug mode, prints out each scan code." NL "\t\tIf argument \033[35mT\033[0m is given, prints out each scan code state transition.", cliFunc_matrixDebug },
 	{ "matrixState",  "Prints out the current scan table N times." NL "\t\t \033[1mO\033[0m - Off, \033[1;33mP\033[0m - Press, \033[1;32mH\033[0m - Hold, \033[1;35mR\033[0m - Release, \033[1;31mI\033[0m - Invalid", cliFunc_matrixState },
 	{ 0, 0, 0 } // Null entry for dictionary end