Add QoS overrides to stereo_image_proc

[audrow]

This is adding QoS overrides, which were added in ros2/rclcpp#1408.

This PR relies on

• Expose subscription options image_common#186
• Expose Subscription Options - V2 ros2/message_filters#56

[jacobperron]

LGTM, one nitpick

[jacobperron]

We should make sure the CI jobs are green before merging. Since this change is not compatible with Foxy, we should probably branch (FYI @JWhitleyWork). For Rolling, we should make releases for the changes to image_common and message_filters (I can help with that); for Galactic it may require backporting those changes (I'll check when releasing for Rolling).

[audrow]

I think I'm going to make a PR to rclcpp to create a default QoS override options object to remove some redundancy.

[jacobperron]

@JWhitleyWork Friendly ping for review. It sounds like we may also want to re-target this to a new rolling branch once it exists (#659 (comment))

[jacobperron]

@ros-pull-request-builder retest this please

[pmusau17]

Tested this on ros2 galactic and ros2 rolling. It builds and passes all tests. I made two small edits to the package.xml files in this PR.

[jacobperron]

Re-targeted rolling.

[clalancette]

@ros-pull-request-builder retest this please

[clalancette]

@ros-pull-request-builder retest this please