lf t5 read plus lf demod adjustments

lf t5xx commands updated from ICEMAN
lf em410x commands updated
lf search bug fix for 2 args
test scripts from iceman
lf demod:
better ask clock detection with Strong fully clipped waves
better ask raw demod with strong fully clipped waves
fsk demod add back in skipped bits during demod
nrz demod add back in skipped bits during demod