LJ: improve/generalize Low-Jitter functionality detection/handling (WIP)

1 job from ml_lj_unification in 38 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Syn
failed #14735
xilinx_ISE_14.7
job_scb_top_8p_syn

00:38

 
Name Stage Failure
failed
job_scb_top_8p_syn Syn
Number of infos    :    0 (   0 filtered)


Process "Synthesize - XST" failed
INFO:TclTasksC:1850 - process run : Synthesize - XST is done.
Makefile:357: recipe for target 'synthesize' failed
make: *** [synthesize] Error 1
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1