Viewer and basic matching

[FaroutYLq]

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What does the code in this PR do / what does it improve?

Implemented basic matching algorithm and waveform viewer.

Can you briefly describe how it works?

For matching:

• Filtering out bad truth in simulation
  • Missing S1 or S2
  • Reconstructed multiple S1 and S2 from one truth
  • "found" both S1 and S2. (Currently turned off this criteria because of a bug in wfsim leading to shifted timing)
• Match simulation to the filtered truth
• Match the saltax events to the matched simulation
• Match those matched simulation to saltax events again.

You end up with equal length arrays events_salt_matched_to_simu and events_simu_matched_to_salt.

Can you give a minimal working example (or illustrate with a figure)?

Please include the following if applicable:

• Add an appropriate tag to this PR
• Update the docstring(s)
• Update the documentation
• Tests to check the (new) code is working as desired.
• Does it solve one of the open issues on github?

Notes on testing

• Until the automated tests pass, please mark the PR as a draft.
• On the XENONnT fork we test with database access, on private forks there is no database access for security considerations.

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