Add camera info to camera node

[nlitz88]

Described here: #2

• Add front camera's calibration parameters
• Add rear camera's calibration parameters

Really, the functionality to read the calibration yaml file, populate the CameraInfo message, and then publish it could be its own package + node, as this is just a general ROS need if you don't already have a camera driver to do it for you.

[nlitz88]

What might be easier than manually populating a CameraInfo message is to try to get our hands on data from the dataset where we have a checkerboard in frame. We can play this back and use the ROS calibration tool to figure out the calibration parameters.