first proper BM proposal with thresholds included:
Benchmarks/BMA_WT.
added two more BMs BMB_WT and BMC_WT.  But all have mHu2>0.
need to work on this again.
added printout for BM table.
updated benchmarks.
removed old BMs
added speak flag to suppress couts for scan.
BugFix:  changed from tree level mixing matrix to pole mixing matrix.
also added printout for scan that I was doing when when I noticed the bug.
prepared for scan.