Set custom projection values from sdf

[iche033]

🎉 New feature

Summary

Related comment: #293 (comment)

This PR allows users to specify custom camera projection using the <projection> values from SDF (in addition to <instrinscs>, see #293).

Also bumped sdformat dep version as it need gazebosim/sdformat#1203

Test it

Run the INTEGRATION_camera test

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.

[codecov]

Codecov Report

Merging #314 (9f7fb14) into gz-sensors7 (06457f7) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 9f7fb14 differs from pull request most recent head b6b4187. Consider uploading reports for the commit b6b4187 to get more accurate results

@@             Coverage Diff              @@
##           gz-sensors7     #314   +/-   ##
============================================
  Coverage        69.80%   69.80%           
============================================
  Files               36       36           
  Lines             3888     3898   +10     
============================================
+ Hits              2714     2721    +7     
- Misses            1174     1177    +3     

Impacted Files	Coverage Δ
src/CameraSensor.cc	80.42% <100.00%> (+0.53%)	⬆️
src/Sensor.cc	89.83% <0.00%> (-1.61%)	⬇️

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