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First version of ElementLink based Acts SourceLinks.

Goetz Gaycken requested to merge goetz/athena:main_use_element_links_in_acts_source_links into main

Currently a helper container is created for uncalibrated measurements, and the Acts source links point to elements of this helper container. Thus the helper container needs to be persistified together with the Acts trajectories to sustain the validity of the source links.

This can be avoided by using ElementLinks as payload for the Acts source links which point to the uncalibrated measurements.

This is a straight forward migration to element links. Detector element identifier hashes are turned on the fly into geometryIds and a similar transformation is performed by the measurement calibrator to identify the correct projection matrix for strip surfaces with annulus bounds.

These on-the-fly transformation lead to some penalty.

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