Added unittest annotation and Testify Plugin Hooks

[rambleraptor]

This pull request adds in a plugin to annotate TestCases with a list of all of the methods within that are Unit Tests. Additionally, a new testify plugin hook was created to help do this.

[rambleraptor]

Additionally, I wrote some documentation for building new Testify plugins and put it up on the internal wiki. Is there any interest in placing that on Github?

[ymilki]

If its minimal work, we do have the wiki page for this repo that might be a good place to put documentation on.

[rambleraptor]

Flake8 was added on the makefile but isn't on the Travis CI server. How can I add it or should we wait off?

[bukzor]

.travis.yml contains essentially a bash script. Look at it. It's designed to be simple.

I'd probably put the quality control procedures somewhere central, either in the Makefile or a bash script, then invoke it both places, to ensure that the two use cases don't drift away from each other.

[bukzor]

@astephen2 You've correctly edited the CI process, but it fails because not all flake8 issues are resolved.

Your choices are:

1. use setup.cfg to opt out of the failing checks
2. invent a whitelisting system of sorts, to grandfather in the currently-failing modules
3. fix all the things

In any case, CI needs to finish successfully.

[rambleraptor]

For the time being, I've removed the flake8 dependency. I feel like there should be a discussion about how to handle codes style in Testify before automated style checking is added in.

[bukzor]

I see you've found a fourth option :P I'll leave the rest to milki.

[ymilki]

lgtm. Thanks.