Move Packing related algorithms to Event/EventPacker

As preparation to change the output of the event packers from packed objects to packed data buffers, I move the PackedData and PackedDataBuffer to Event/EventPackers.

requested review from @graven

added 1 commit

• 764c581b - Fixed formatting

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assigned to @ascarabo

added Accelerators label

removed Accelerators label

added Persistency label

@chasse Can we test this? It's a rather harmless change I hope :)

approved this merge request

removed review request for @graven

added lhcb-head label

• [2021-09-28 00:12] Validation started with lhcb-head#3062

removed lhcb-head label

assigned to @chasse

added cleanup label

resolved all threads

merged

mentioned in commit 6c8f2fc5

mentioned in issue Moore#335 (closed)