some initial code for the emulator library
basic single step function
various small fixes
simple python wrapper around darmu
updated makefile, corrected darmu structure size, linux filepath support
weird static linking with libraries
wrappers to implement instruction handlers
initialize the stack pointer and implement push instruction
move instruction handlers to insns.c
rewrite of the mapping stuff, added darmu-read32/write32
support for branching in single-step
added various instructions
added 8/16bit read/write functions
put all str/ldr instructions into one handler