chore: Add basic benchmark setup

[paleolimbot]

No description provided.

[codecov-commenter]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (a41fb2b) 87.89% compared to head (8d7fd28) 87.89%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
r/R/buffer.R	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #384   +/-   ##
=======================================
  Coverage   87.89%   87.89%           
=======================================
  Files          76       76           
  Lines       13371    13371           
=======================================
  Hits        11752    11752           
  Misses       1619     1619           

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[assignUser]

Nice, looks clean. Do you not want to use find_package to avoid system libraries for some reason (e.g. specific versions or something)?

[paleolimbot]

Do you not want to use find_package to avoid system libraries for some reason (e.g. specific versions or something)?

No specific reason, but it also doesn't cause any issues! In general it's pretty nice that you can clone/build without a package manager (e.g., no conda or brew installs) except for Arrow C++ (and I'd like to remove that when possible).