Added HardwareSerial* as parameter to print person
Fixed bug in check for file
Added RFID and Finger revoke mechanisms
Added user scan
Added set user credits
Enabled creditsystem
moved drinksMax to beerbox struct and refactored to maxDrink
added if(debug) to all serial write and serial print statements
Moved BLE com to seperat file and added command and subcommandparsing
Added filename JSON method
