Hacked-up test bench. Default and Programmed Offsets/Increments work!

Write test also passed. (code can update DO/PO/INC)
Assembler needs a rewrite for new memory map.
Fmax (min/avg/max) reduced to: 435/463/488
Several critical paths in ControlPath, which is next to rewrite anyway.
Merge branch 'pattern_match' of https://github.com/laforest/Octavo into pattern_match