Add GaussMarkovProcess pybind11 interface and examples

[ahcorde]

Signed-off-by: ahcorde [email protected]

🎉 New feature

• Part of Create examples for all classes #300

Summary

This PR creates a GaussMarkovProcess Pybind11 interface and adds examples

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

Merging #315 (b3e1a97) into ign-math6 (9085401) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           ign-math6     #315   +/-   ##
==========================================
  Coverage      99.65%   99.65%           
==========================================
  Files             67       67           
  Lines           6360     6360           
==========================================
  Hits            6338     6338           
  Misses            22       22           

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[chapulina]

Just some comments about the examples

[chapulina]

LGTM, I pushed some tweaks to the examples in b3e1a97

[osrf-triage]

This pull request has been mentioned on Gazebo Community. There might be relevant details there:

https://community.gazebosim.org/t/new-ignition-releases-2022-03-01-citadel-edifice-fortress/1313/1