SDF to USD: Added Material Physics

[ahcorde]

Signed-off-by: Alejandro Hernández ahcorde@gmail.com

🎉 New feature

Requires:

• Added Friction and ODE classes #955

Summary

friction parameters are expressed as a material in USD, this code will link the collision with the physics material

Test it

Example inside ign-gazebo

sdf2usd diff_drive_skid.sdf

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-commenter]

Codecov Report

Merging #975 (f16f8b0) into sdf12 (12e7782) will not change coverage.
The diff coverage is n/a.

❗ Current head f16f8b0 differs from pull request most recent head d065641. Consider uploading reports for the commit d065641 to get more accurate results

@@           Coverage Diff           @@
##            sdf12     #975   +/-   ##
=======================================
  Coverage   65.38%   65.38%           
=======================================
  Files           2        2           
  Lines          26       26           
=======================================
  Hits           17       17           
  Misses          9        9           

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[chapulina]

@ahcorde , is this ready to be merged?