Allow for sensitive actions with multiple readout segmentation in the Geant4Sensitive action sequence

Allow for sensitive actions with multiple readout segmentation in the Geant4Sensitive action sequence

Allow for sensitive actions with multiple readout segmentation in the Geant4Sensitive action sequence

Allow for sensitive actions with multiple readout segmentation in the Geant4Sensitive action sequence

Allow for sensitive actions with multiple readout segmentation in the Geant4Sensitive action sequence

Allow for sensitive actions with multiple readout segmentation in the Geant4Sensitive action sequence

This allows syntax like
```xml
  <detectors>
    <detector id="1" name="FT_MT" type="DD4hep_GdmlDetector" vis="InvisibleWithChildren">
      <gdmlFile ref="GdmlDetector.gdml" physvol="lvUpstreamRegion_0"/>
      <parent name="/world"/>
    </detector>
  </detectors>
```
to only load the specific `physvol` in `examples/ClientTests/compact/GdmlDetector.gdml`.

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

This avoids a test failure when DD4hep is built with
DD4HEP_USE_GEANT4=OFF

- Lets see if the checks pass...

 - Using `ref="OtherVisName"` attribute, the visualization attribute is an extension of
the `"OtherVisName"` which is used to initialize the new vis attribute.
 - The new VisAttr inherits all the properties  of the ref and additional arguments override these values.

Example where the only difference is the `alpha` value.

```
  <vis name="SiVertexBarrelModuleVis"
       alpha="1.0" r="1.0" g="0.75" b="0.76"
       drawingStyle="wireframe"
       showDaughters="false"
       visible="true"/>

  <vis name="SiVertexEndcapModuleVis"
       ref="SiVertexBarrelModuleVis"
       alpha="0.5"/>
```

	modified:   src/plugins/Compact2Objects.cpp

- G4Sphere  uses delta theta/phi instead of TGeo's ending angles
  phi2/theta2.

Propagate shape tags to shapes resulting from volume divisions. See issue https://github.com/AIDASoft/DD4hep/issues/833

Propagate shape tags to shapes resulting from volume divisions. See issue https://github.com/AIDASoft/DD4hep/issues/833

Propagate shape tags to shapes resulting from volume divisions. See issue https://github.com/AIDASoft/DD4hep/issues/833