Adding export of sr_hand_finder (and sr_arm_finder) libraries such th…

[ethanfowler]

…at they can be resolved externally.

Proposed changes

Please explain the changes you made. Add pictures or videos to explain them better if appropriate.

Checklist

Before posting a PR ensure that from each of the below categories AT LEAST ONE BOX HAS BEEN CHECKED. If more than one category is applicable then more can be checked. Also ensure that the proposed changes have been filled out with relevant information for reviewers.

Tests

• No tests required to be added. (For small changes that will be tested by CI/CD infrastructure).
• Added/Modified automated and PhantomHand CI tests (if a new class is added (Python or C++), the interface of that class must be unit tested).
• Manually tested in simulation (if simulation specific or no hardware required to test the functionality).
• Manually tested on hardware (if hardware specific or related).

Documentation

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• Added documentation (For any new feature, explain what it does and how to use it. Write the documentation in a relevant space, e.g. Github, Confluence, etc).
• Updated documentation (For changes to pre-existing features mentioned in the documentation).

[codecov]

Codecov Report

Merging #234 (c807d38) into noetic-devel (a3fdb07) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff              @@
##           noetic-devel     #234   +/-   ##
=============================================
  Coverage         33.90%   33.90%           
=============================================
  Files                16       16           
  Lines               879      879           
  Branches            577      577           
=============================================
  Hits                298      298           
  Misses              101      101           
  Partials            480      480           

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