Switch to awkward arrays and boost histograms#5

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cerminar wants to merge 18 commits intomainfrom

Commits on May 15, 2023

Commits on May 23, 2023

port to new conversion syntax
cerminar
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Commits on May 26, 2023

Commits on May 31, 2023

continue migratio to awkkward arrays (now include rates)
cerminar
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Commits on Jun 2, 2023

Consolidate migration to awkward arrays, port more plotters and evolve configs
cerminar
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Commits on Jun 9, 2023

Add base class and ipementations to produce ttrees in plotters
cerminar
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Commits on Jul 5, 2023

Commits on Sep 25, 2023