ADD: @marshmellow42 's 14b fixes.

FIX: 14b sim changes in  iso14443b.c ,  *experimental*   I took some timing loops from "14a sim" armsrc/iso14443a.c  and merged it into the "14b sim".   Now using two pm3's I can have one simulating and the other reading and it works.  Ask @pwpiwi if you want to know more of what those timing loops does.  Something about waiting for the fpga delay queue...