add AllowBuilderHoldFire call-in

bool AllowBuildHoldFire(unitID, unitDefID, action)
action is one of:
   -1 Build
   40 Repair (CMD_REPAIR)
   90 Reclaim (CMD_RECLAIM)
  110 Restore (CMD_RESTORE)
  125 Resurrect (CMD_RESURRECT)
  130 Capture (CMD_CAPTURE)