Add camera models for VTOL models for sitl

[Jaeyoung-Lim]

Describe problem solved by this pull request
This is a follow up of PX4/PX4-SITL_gazebo-classic#360 which adds a sitl models for VTOLS that have camera attached in order to simulate survey missions.

[LorenzMeier]

Some developers will not have the CPU performance to run this - have we tested the impact?

[Jaeyoung-Lim]

@LorenzMeier I didn't add the camera to the existing vtol models, but created additional models for that reason.

I will do a quick test on how much CPU load is required, but on my laptop it wasn't so bad.

[hamishwillee]

@Jaeyoung-Lim HOw are these used? Specifically, I assume these allow you to stream video and take images from gazebo.

Looking at existing docs - what of the following is true?: http://dev.px4.io/master/en/simulation/gazebo.html#video-streaming

[LorenzMeier]

I don't see an update of the SITL submodule - how did the new models come in?

[Jaeyoung-Lim]

@LorenzMeier There was a discussion in PX4/PX4-SITL_gazebo-classic#360 where the models were considered redundant and a test regarding surveying would makes sense to get the models in

[hamishwillee]

Hi @Jaeyoung-Lim

I assume you'll answer this before you merge: #13214 (comment)

IMO a feature that people can't easily discover use might as well not exist.

[TSC21]

Hi @Jaeyoung-Lim

I assume you'll answer this before you merge: #13214 (comment)

IMO a feature that people can't easily discover use might as well not exist.

@hamishwillee, @Jaeyoung-Lim and I already decided in an approach to have usage to the models being added: survey mission testing in CI. More to come next.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. Thank you for your contributions.

[Jaeyoung-Lim]

Closing as stale