Added Trigger to Depth camera

[ahcorde]

🎉 New feature

Summary

Added Trigger to Depth camera

Test it

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]

Note that #431 added the trigger functionality for all sensors in Harmonic. We could backport #431 but I think there'll be quite a bit of conflicts. Changes look good here if we just want the trigger functionality for depth cameras.