updated project for 10.4
FatFS shell driver updated to conform handler standard parsing.
functional USB HID Keyboard implementation
initial change to support Keil compiler/assembly syntax.
new generic ring buffer component.
updated HID Keyboard settings
initial version of USB HID Keyboard project
added USB HID events
added readme text file
added {...} to avoid warning of gcc.
added ARM Keil compiler
support for Keil compiler/assembler
updated CDC projects for MCU10.4