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/ADCTest/scan_loop.c

@@ -65,8 +65,8 @@ volatile uint8_t KeyIndex_BufferUsed;
 
 
 // Scan Module command dictionary
-char*       scanCLIDictName = "ADC Test Module Commands";
-CLIDictItem scanCLIDict[] = {
+char scanCLIDictName[] = "ADC Test Module Commands";
+const CLIDictItem scanCLIDict[] = {
 #if defined(_mk20dx128_) || defined(_mk20dx256_) // ARM
 	{ "adc",     "Read the specified number of values from the ADC at the given pin: <pin> [# of reads]"
 	          NL "\t\t See \033[35mLib/pin_map.teensy3\033[0m for ADC0 channel number.", cliFunc_adc },