Updates for x86-64, adjusted memory_space.cpp to have O(ln(n)) complexity instead of O(N) in a few commo cases.

Partial nonce-code -- should be silent without IRDB relocs added.  Also refactored byte_map into memory_space.

1. Add the ability to rewrite section headers.
We need this because extending sections requires
that their headers be rewritten or the contents
that are in the extended ranges get zero-d.

2. Internally "segmentize" the .strata section
We no longer need to call out to add a segment
for .strata.

No commit message

Also, give user an option to override the
detected architecture.

made work on CGC machine.  Added prelim options for linking it callbacks from a separate .exe file.  added verbosity flag.

No commit message

No commit message

No commit message

No commit message

No commit message