Co-authored-by: jmcarcell <jmcarcell@users.noreply.github.com>
Co-authored-by: Andre Sailer <andre.philippe.sailer@cern.ch>

Co-authored-by: sss <sss@karma>
Co-authored-by: Andre Sailer <andre.philippe.sailer@cern.ch>

In

```
  const TGeoHMatrix& m = par.nominal().worldTransformation();
```
nominal() returns a temporary Alignment object by value, and
worldTransformation() returns a reference within that Alignment object.
So we shoud make a copy.

needed after https://github.com/key4hep/EDM4hep/pull/389

- Set but unused variables and unused variables or declarations
- Deprecated constructor for a Vector3d from a Vector3f from EDM4hep
- Missing override
- Having a space after `operator""` is deprecated

Made sure we actually would write some stuff to the tree if we had hits