setup critical edge breaking to 1) emit a map of critical edges, and 2) parameterize which edge types get broken

setup critical edge breaking to 1) emit a map of critical edges, and 2) parameterize which edge types get broken

reworked the red-zone detector to do better than just using leaf functions, as we found the red zone used in a non-leaf function

updating zafl.sh and zax to using command line args instead of env for communicating fixed-map addressing