Run CLI validations against patterns and samples via GitHub action

[willosborne]

Feature Request

Once CLI is ready we need to ensure all validations, spectral + JSON Schema, are run against patterns and samples in the repo whenever something changes. Combined with #96 this will give us confidence that patterns are staying in sync with the CALM spec

Description of Problem:

Samples and patterns are only validated via spectral currently

Potential Solutions:

• Run CLI against all patterns and samples
• CLI may need augmenting to support globs to avoid running executable many times