Ability to specify which version of code standard

[josephdpurcell]

Problem

I can imagine scenarios where a code standard gets updated by Code Climate and someone's repository has their GPA downgraded (or upgraded).

I can also imagine where someone wants to add a custom code style check that isn't officially supported by Code Climate

Proposed Resolution

1. Add the ability to specify specific versions of a code standard (this version would map to a version that composer understands).
2. Add the ability to specify a custom package from packagist.org to use as a code standard.