lsf.py using a variable project not available in WorkspaceConfig #239

All the issue in this ticket are with LSF.

1. line 56 of lsf.py Launcher.set_pyvenv(cfg.project)
   There is no variable project in type WorkspaceConfig
2. job_rusage = "'rusage[xcelium=1,xcelium_dynamic=1:duration=1]'"
   Need a way to provide the options in ruage. Hardcoded option like xcelium cause issues.