Add a bounding box, but don't use it in romanisim.

[schlafly]

@tddesjardins , care to see if this addresses your issue?

It's slightly annoying since by default the bounding box prevents one from figuring out, e.g., where stars land, if they land slightly off the detector. So I add a box but then disable its use within the simulator.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.74%. Comparing base (525eec2) to head (fa865db).
Report is 48 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #123      +/-   ##
==========================================
+ Coverage   90.73%   90.74%   +0.01%     
==========================================
  Files          16       16              
  Lines        1630     1632       +2     
==========================================
+ Hits         1479     1481       +2     
  Misses        151      151              

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[tddesjardins]

LGTM. I think this will do the trick. Thanks!