Adapt to new (v00-15) podio generated class names

[vvolkl]

• Replace some dedicated types with and rename others (Cluster -> MutableCluster, ConstCluster -> Cluster) to adapt to the new naming scheme introduced in Make the default classes immutable and mark mutable classes explictly AIDASoft/podio#205.

[SanghyunKo]

Hi @vvolkl, thanks for the commit. CI does not work obviously but I checked that it works with the lastest Podio + EDM4hep + k4FWCore, and with HEP-FCC/k4SimGeant4#15. This will break support for lcg releases but I think we can get it back once we have AIDASoft/podio#238.

[vvolkl]

Hi Sanghyun, thanks for merging this so quickly. Besides explicitly checking for versions, I think it could also be possible to keep compatibilty with earlier versions just by deducing the type of thePtr from m_Edeps. but it would be less straightforward. Since it's the only change that is needed for the podio class renaming, it may be worthwhile though, I'll take another look.