Adding CLI and CDC Serial support for Teensy 2.0 and Teensy 2.0++

- Includes serial putchar and getchar cleanup (overall)
- Moved avr-capsense to DPH (renaming)
- Basic cleanup for including CLI on the avr architecture

Output/pjrcUSB/setup.cmake

@@ -17,7 +17,7 @@ if ( ${COMPILER_FAMILY} MATCHES "avr" )
 
 	set( OUTPUT_SRCS
 		output_com.c
-		avr/usb_keyboard_debug.c
+		avr/usb_keyboard_serial.c
 	)
 
 #| ARM Compiler