Applied PwPiwi's new parity fix.
Applied Marshmellw's fixes for FSKdemod (HID, IO)
FIX: a potential bigbuffer fault given pwpiwi's change inside lfops.c CmdIOdemodFSK & CmdHIDdemodFSK
FIX: change some "int" parameters to uint's.
FIX: changed the lfops.c - DoAcquisition125k_internal to respect pwpiwi's definitions of FREE_BUFFER_OFFSET
HEADS up: The ultralight functions hasn't been verified since pwpiwi's changes.
FIX: hf mf esave - now supports specifying 0,1,2,4 in card memory for the file to be saved.
ADD: data.h - added FILE_PATH_SIZE constant
ADD: hf legic load - a command help and checks for FILE_PATH_SIZE
ADD: hf legis save - now checks for FILE_PATH_SIZE
ADD: lf hitag - now checks for FILE_PATH_SIZE
ADD: util.c - AddLogLine now checks for FILE_PATH_SIZE
ADD: data load / save - now checks for FILE_PATH_SIZE
FIX: ui.c - added a case of closing a filehandle
FIX: hf mf cload / csave now checks for FILE_PATH_SIZE
FIX: armsrc/mifarecmd.c - adjusted the buffersize in MifareEMemget from 48 to USB_CMD_DATA_SIZE