Renaming of new Tracking EDM classes

As discussed at last ACTS+ITk meeting I proceeded with implementing consistent naming.

Mutable* are classes what allow changes to the objects (insertions basically). Corresponsing classes w/o prefix i.e. TrackContainer are the const ones.

While dooing this discovered the name clash and decided to introduce TrackStorageContainer - i.e. in this case Backend became Storage as per Noemi's suggestion.

The convertToConst became moveToConst and require mutable version passed by &&.

@ncalace @toyamaza @wolter @emoyse @pagessin @adye @asalzbur @goetz

This is part 1, part 2 will be xAOD classes.

This merge request affects 3 packages:

• Event/DumpEventDataToJSON
• Tracking/Acts/ActsEvent
• Tracking/Acts/ActsEventCnv

Affected files list will not be printed in this case

Adding @pagessin ,@jojungge ,@tbold ,@toyamaza ,@cvarni as watchers

added ACTS EDM Tracking main review-pending-level-1 labels

CI Result SUCCESS (hash 4ecc0fff)

	Athena
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 78947]

Oh, I like this very much!

Do not want to abuse "urgency" label but can this be priotitised (due to high chance of conflict). And Ed likes it! :-)

lgtm as well

added urgent label

Changes look fine, CI is good and Ed likes it. Approving. Clara (L1)

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit b86fab57

Looks like !66281 (merged) didn't cause a merge conflict after all...

mentioned in merge request !66296 (merged)

added sweep:ignore label