analysis : Introduce buildAnalysisSegments() in Segment Store analysis

analysis : Introduce buildAnalysisSegments() in Segment Store analysis

This abstract method helps the analysis decide how the segment store
will be built.

For instance, the segment store could be built using a request or using
segments generated by a prerequisite analysis.

Change-Id: I68c6b5d35ff71d8c06c5b4881bcbce25404b5581
Signed-off-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/64592
Reviewed-by: Genevieve Bastien <gbastien+lttng@versatic.net>
Tested-by: Genevieve Bastien <gbastien+lttng@versatic.net>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Hudson CI