Added imem from mips project
Removed dmem
Adjusted width of imem to be 16 instead of 32 bits

Really I just halved the interesting looking numbers
:grin:
Corrected width in imem
Hooked up imem, Corrected top-level architecture of AVR & DataPathUnit

AVR: removed instr input from AVR chip
DataPathUnit: instr is an out, not in