Enable vertexing for ITk [ATLIDTRKCP-382]

This MR adds preliminary support for vertexing on master for ITk.

• InDetTestPixelLayerToolCfg is modified to use ITkPixelConditionsSummaryCfg when ITk is enabled
• ActsGeometryConfig is modified to use the correct upstream ITk alignment cond algs. Also, ActsTrackingGeometryToolCfg will now call ActsAlignmentCondAlgCfg, rather than relying on the job to configure an ACTS alignment cond alg
• {ITk}TrackRecoConfig is modified to write out primary vertices that are produced
• IDPVM is modified to not ignore vertices anymore for ITk
• flags.ITk.doVertexFinding is changed to True by default

With all of this, I get 5 primary vertices in from a ttbar RDO with 5 events:

Any suggestions on additional checks I should run?

FYI: @tstreble, @lgagnon, @ncalace, @rgarg