Get point clouds from Zed2

[zolson427]

Why do we need to develop a new feature?
Point clouds are needed to integrate Zed2 camera data into the autonomous control system.

Describe the solution you'd like
Zed2 should output point clouds in a way that we can use to navigate.

https://github.com/stereolabs/zed-ros-wrapper
https://www.stereolabs.com/docs/tutorials/depth-sensing/
https://github.com/stereolabs/zed-examples/tree/master/depth%20sensing/cpp