* AliEveVSDCreator

* AliEveVSDCreator
  Major cleanup and partial rewrite.

  Now (again) properly dumps in TEveVSDStructs:
  - Kinematics;
  - Hits for ITS, TPC, TRD and TOF (could easily add others);
  - Clusters -- same as above;
  - ESD tracks.

  Supports writing of several events into the same file.

  It should now be easy to display this data in ROOT only.

* macros/alieve_create_vsd.C
  Update for the new features.
  Support "min number of ESD tracks" cut.

* AliEveEventManager
  Add static CurrentEventId().