Set up source code style enforcement in our make process about igvc-software

[rmkeezer]

Since we are using catkin cmake instead of make, the build system is a bit different. For now, we can use clang-format to format any one file or a bash file to format all files.

[jgkamat]

If you want, you can use justin's tool called stylize to format only the files changed since the merge from master (which is what we use). You can write a small shell script to format all files if you want that intead as well.

[barulicm]

Our ROS projects should follow the ROS style guidelines to be consistent with other ROS code out there.
There is a clang-format style definition for the ROS guidelines available here.

[rmkeezer]

I was using the robojackets formatting that Robocup are using: https://github.com/RoboJackets/style-configs
I'm not a fan of using ros style guide since they are quite a bit different from what our current code is.
2 space indents
braces on their own line
120 column limit
But if everyone is ok with using the ROS style guidelines, we'll use that.

[rmkeezer]

I'll open up a poll

[rmkeezer]

ROS style is being used for now but may be changed in the future. Auto-formatting is moved and detailed in issue #192