Added DEM support to heightmaps

[jennuine]

🎉 New feature

• Part of Support DEMs gz-sim#235
• Requires:
  • Geospatial component for heightmap & DEMs gz-common#267
  • Bump in Garden: ign-common and dependents gazebo-tooling/release-tools#567
  • Geospatial component for heightmaps (2nd try) gz-common#292

Summary

Extended heightmap implementation to support DEMs.

ign-gazebo preview:

Test it

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

[chapulina]

• Yay, nice! Also requires Bump in Garden: ign-common and dependents gazebo-tooling/release-tools#567 so this branch is used by Garden.

[codecov]

Codecov Report

Merging #315 (ecf8013) into main (5a5a974) will increase coverage by 0.03%.
The diff coverage is 100.00%.

❗ Current head ecf8013 differs from pull request most recent head f299b26. Consider uploading reports for the commit f299b26 to get more accurate results

@@            Coverage Diff             @@
##             main     #315      +/-   ##
==========================================
+ Coverage   75.61%   75.65%   +0.03%     
==========================================
  Files         128      128              
  Lines        5541     5537       -4     
==========================================
- Hits         4190     4189       -1     
+ Misses       1351     1348       -3     

Impacted Files	Coverage Δ
...clude/ignition/physics/heightmap/HeightmapShape.hh	100.00% <ø> (ø)
dartsim/src/CustomHeightmapShape.cc	94.73% <100.00%> (+12.12%)	⬆️

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[scpeters]

CI is giving warnings because it is not using gazebosim/gz-common#292

[chapulina]

Nice, LGTM!

[chapulina]

Windows CI is broken on main. Not blocking this because of that, merging.

https://build.osrfoundation.org/job/ign_physics-ci-win/147/console

C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(997,5): error MSB6006: "link.exe" exited with code -1073741571. [C:\Jenkins\workspace\ign_physics-ci-win\ws\build\ignition-physics6\test\integration\INTEGRATION_FrameSemantics3f.vcxproj]