Multi ORM support

[Crusader4Christ]

Support for waterline work alongside with other orm systems

[mikermcneil]

@Crusader4Christ Thanks for the suggestion! I think I'd prefer to see this in sails-hook-orm-sequelize, just to allow for any related tweaks to take place outside of core. (And it'd be great to link to that from the README in this repo, and from Sails docs)

For an example: https://github.com/mikermcneil/sails-hook-orm-mongoose

[Crusader4Christ]

@mikermcneil Problem is working in parallel mode - with blueprints enabled for waterline models.