start of malloc replacement code.

essentially just finding a location to put it, at the moment.
ignore a couple more binaries
bfd: we need getpagesize and posix_memalign.
debug: remove never implemented garbage function
move a bunch of not-so-relevant code to separate files.
fill in the call addresses for our custom malloc.

these need to be runtime-calculated as offsets to where we are
inside libc (or whatever lib has some free memory for us).  not
entirely sure these offsets are correct yet.