Copy 1.10 spec to 1.11 for sdformat14

[jasmeet0915]

🎉 New feature

This PR creates a new version of the SDF spec 1.11 targeted for the sdformat14. It would be required by the Automatic Moment of Inertia Calculation project. The SDF proposal for the same can be found here

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• 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.

[scpeters]

one failed expectation in Root_TEST.cc that should be easy to fix:

• https://build.osrfoundation.org/job/sdformat-ci-pr_any-homebrew-amd64/4868/testReport/junit/(root)/DOMRoot/CopyConstructor/

[jasmeet0915]

@scpeters I have updated the spec version in the failing test in e553e80

[azeey]

The test failures are caused by some updates to the spec that have not been included in this PR. Can you merge from main and copy some of the new changes in sdf/1.10 to sdf/1.11?

[codecov]

Codecov Report

Merging #1298 (bbecef0) into main (57511b8) will not change coverage.
The diff coverage is n/a.

❗ Current head bbecef0 differs from pull request most recent head b43f202. Consider uploading reports for the commit b43f202 to get more accurate results

@@           Coverage Diff           @@
##             main    #1298   +/-   ##
=======================================
  Coverage   87.60%   87.60%           
=======================================
  Files         128      128           
  Lines       16830    16830           
=======================================
  Hits        14744    14744           
  Misses       2086     2086           

[azeey]

I found additional differences when I did meld sdf/1.10 sdf/1.11 and added those in b43f202