made a bunch of data+ctrl flow diagrams

update state machine + data flow. Also created png images
add SRAM, I2C flow: simply copied from lab2
add keypad flow: also fixed typo in RFID reader
made card reaction dataflow and image
Updated functional decomp

FunDecomp now software specific
deleted hw decomp: unnecessary to have
more documentaion updates

update gantt: new image + added test dates
add design issues/choices document: also updated BOM
untracked a bunch of dumb mplabx files
updated git ignore files
block diagram matches current hardware design