Add mnemonic machinery to take into account mnemonics versions

This MR is here to solve #21 (closed)

• The mnemonics is a dictionnary, with str as keys and tuple of dict as values (instead of dict).
• A function mnemonics_for_run checks the extra_data DataCollection sources and keys to find which version of the mnemonic is available. The tuple structure ensures the order in which the check is performed, so that the versions can be sorted from most recent to least recent.

An example notebook is attached

Mnemonics_machinery.ipynb

Close #21 (closed) #12 (closed)

changed the description

added 2 commits

• 5ae62aea - Adapted bam, xgm, digitizers to new mnemonics machinery
• 10ab4ea7 - Updated load documentation

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unmarked as a Work In Progress

added 1 commit

• e40c95b3 - Combine all FFT magnet source versions

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changed the description

mentioned in commit e4c56c82

What about adding a bunch of mnemonics from other open branches we have ?

• https://in.xfel.eu/gitlab/SCS/ToolBox/tree/racer
• https://in.xfel.eu/gitlab/SCS/ToolBox/tree/knife_edge_fix

good idea, done.

Can we delete some of the stale branches now that you added some other mnemonics ? https://in.xfel.eu/gitlab/SCS/ToolBox/-/branches

Otherwise I think it's ready for merge.

Yes, you can remove both racer and knife_edge_fix

added 1 commit

• a1e407c2 - Add mnemonics DPS1CAM2, ILH_10CAM1, ILH_PIDelay, LLC_webcam2, Racer1, BBO_RY

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merged

mentioned in commit c56d2302

mentioned in merge request !105 (merged)