Add chai-jq to support libraries

I understand not wanting to bloat the support libraries, but I believe chai-jq is a great addition to a mocha test framework, in the same way that Jasmine-jQuery is to the Jasmine stream of things. 

chai-jq well-maintained and thoroughly tested. 

Would be great to have this available as an option if you think it fits within the greater context of this project. 

Thanks!

/cc @ryan-roemer