In method insideL suppreesed all checks, apart of X or Rxy. It is too early
to do the full checks

In insideL() also added chech for environment variable "insideAssert"
If it is not defined insideL always returns 1, to avoid asserts in production.
In method refitL() added additional loop to test nodes for inside/outside.
This is temporary, for debugging
call of nudge() added to move node position onto detector plane.
If failed, node defined as invalid
assert inside() addedinstead of previos  only tube check
Method nudge() rewritten. For complicated cases THelixTrack used.
Check for kFarFromBeam putted back (Xin found). It was removed by mistake
method double &phi() == eta() added. eta() is too bad name
Account of tube shape added in propagation. In future will bw replaced bu nudge()
Only Tpc is default now