Not for merge - benchmark summary(<epichains_tree>) vs simulate_summary()

[jamesmbaazam]

This PR sets up a benchmark of two workflows that currently exist in the package for obtaining chain summaries:

1. Run summary(<epichains_tree>), where <epichains_tree> is obtained from a run of simulate_chains().
2. Run simulate_summary() with the same parameters passed to simulate_chains().

The benchmarks will help us decide on whether to keep or delete simulate_summary() as it is currently duplicated code that might become a maintenance burden.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.78%. Comparing base (5e6fd49) to head (38e67ac).

❗ Current head 38e67ac differs from pull request most recent head 64d9948. Consider uploading reports for the commit 64d9948 to get more accurate results

Additional details and impacted files

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##             main     #212   +/-   ##
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  Coverage   98.78%   98.78%           
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  Files           8        8           
  Lines         574      574           
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  Hits          567      567           
  Misses          7        7           

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[jamesmbaazam]

@sbfnk The benchmark reveals that simulate_summary() is faster. I don't think that there is a massive difference though.

[jamesmbaazam]

Closing this PR as stale. Will reopen in the discussion about removing simulate_chain_stats() becomes active again.