simplify twist conversion

[jorgenfj]

added function to convert from msg to PoseEuler
Modified twist conversion to support base Twist message

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.08%. Comparing base (1d860b3) to head (0bee381).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #44   +/-   ##
=======================================
  Coverage   83.08%   83.08%           
=======================================
  Files          11       11           
  Lines        1147     1147           
  Branches      541      541           
=======================================
  Hits          953      953           
  Misses          7        7           
  Partials      187      187           

Flag	Coverage Δ
unittests	83.08% <ø> (ø)

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Files with missing lines	Coverage Δ
...s_ros/include/vortex/utils/ros/ros_conversions.hpp	100.00% <ø> (ø)

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