fix(steering-odometry): convert twist to steering angle

[reinzor]

The logic in this function was incorrect, if we divide by 0., the input of the atan goes to inf which should result in PI/2 instead of 0.. What should be handled instead are nan values as an input of the atan function that can happen if we input 0./0..

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.36%. Comparing base (57c50e5) to head (a5f7f4d).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1288      +/-   ##
==========================================
+ Coverage   80.34%   80.36%   +0.01%     
==========================================
  Files         105      105              
  Lines        9393     9391       -2     
  Branches      831      829       -2     
==========================================
  Hits         7547     7547              
  Misses       1570     1570              
+ Partials      276      274       -2     

Flag	Coverage Δ
unittests	80.36% <100.00%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ring_controllers_library/src/steering_odometry.cpp	81.52% <100.00%> (-0.12%)	⬇️

... and 2 files with indirect coverage changes

[christophfroehlich]

This makes sense, thanks!