Add a code checker/beautifier to enforce coding style

[jprestwo]

It would be nice to add a code style checker to the build so people can more easily abide by our coding style. One option is uncrustify which I have some experience with. The most work involved with uncrustify is creating the configuration file which has quite a few options. We will first need to decide on the specifics of our coding style, then create the config file that uncrustify will use to check our code.