New camera settings retvals

[mlfarrell]

For https://github.com/KittyCAD/engine/issues/2096

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes are missing coverage. Please review.

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❗ Current head 1b6924a differs from pull request most recent head cc2d984

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Files	Patch %	Lines
modeling-cmds/src/shared.rs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #335   +/-   ##
=======================================
  Coverage        ?   55.14%           
=======================================
  Files           ?       51           
  Lines           ?     5895           
  Branches        ?        0           
=======================================
  Hits            ?     3251           
  Misses          ?     2644           
  Partials        ?        0           

Flag	Coverage Δ
unittests	55.14% <0.00%> (?)

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