Add a wide angle camera with lens flare plugin

[iche033]

🎉 New feature

Summary

Updated the camera sensor to be a wide angle camera with lens flare plugin. Mounted it on a post at the back of the house so it's not just floating in mid air.

Needs wide angle camera and lens flare fixes in:

• Fix wide angle camera visibility flags gz-rendering#900
• Support skybox in wide angle cam view gz-rendering#901
• Support specifying the name of light associated with lens flares gz-sim#2172

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.

[iche033]

merging this as the demo was already presented