Update to more recent bigdataviewer-core API (WIP)

[tpietzsch]

Depends on PreibischLab/multiview-reconstruction#49

• Start replacing usage of @Deprecated BDV API
• Simplify generics:
  • remove unnecessary X type parameter in
    ExplorerWindow<AS extends AbstractSpimData<?>, X extends XmlIoAbstractSpimData<?, AS>>
    and downstream classes.
  • remove unnecessary bounds that are already implied by the super-type's generics, e.g.,
    AbstractSpimData<? extends AbstractSequenceDescription<? extends BasicViewSetup, ? extends BasicViewDescription<?>, ? extends BasicImgLoader>>
    adds nothing over AbstractSpimData<?>