Cache RAML files

[blakeembrey]

RAML files should be able to be cached and the cached state retrieved from memory through an !include. This would improve performance of parsing large sets of RAML files.

[sichvoge]

@blakeembrey what's the status on that issue?

[blakeembrey]

Same status as when created. No work has been done on trying to cache intermediate state and it would require changes to the RAML parser.