Optimize sensitive detector callbacks in DDG4, Remove deprecated DetElement factories

[MarkusFrankATcernch]

BEGINRELEASENOTES

• Optimize sensitive detector callbacks in DDG4.
  Many operations were performed twice: once in the sensitive detector, and once again in the computation of
  the MC contribution to the hit. This MR removes multiple computations and uses the results from the MC
  contribution to create the hit.
  The change should be fully compatible and delivers numerically identical results.

• Remove deprecated DetElement factories.
  To not clutter the global namespace with factory names, factories in the DDDetectors area were declared
  deprecated many years ago. At a time these factories were replaced by identical factoris with a name prefix "DD4hep_".
  These factories are "official" and should be used instead.
  On creation such factories issued a warning message.
  It is now time to remove these factories completely.

ENDRELEASENOTES

[MarkusFrankATcernch]

@andresailer @c-dilks
Could you please verify this commit:
4be1f91
I think I have not introduced bugs, but 6 eyes see more than 2....

[andresailer]

Let's merge #1065 and rebase this one, then at least we have a test covering one of the sensitive detectors.

[MarkusFrankATcernch]

@andresailer OK. I leave it then to you to rebase & merge.

[andresailer]

Sorry I didn't get around to merging this before! I wanted to have a look at extractContribution in combination with the changes.

Looks all good!