timing.core: Make statistics analysis support different analyses

timing.core: Make statistics analysis support different analyses

* Make the "getIntersectingElements" not blind cast into Collection
  they are Iterables
* Store the SegmentStoreProvider as a SegmentStoreProvider instead of
  an IAnalysisModule. It is only used as an AnalysisModule at one point
  in the code.

Change-Id: Ie0e81ecd69ceb4634f8e7a4236310efe02f74bea
Signed-off-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/84544
Reviewed-by: Hudson CI
Reviewed-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>
Tested-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>