[ALOY-458] Alloy sql sync adapter to execute queries on fetch()

By default, alloy will collection.fetch() from a sql adapter using this query:

SELECT * FROM table

Where **table** is the name of the table associated with the model/collection. Using a collection, a developer will now be able to do a fetch() based on a custom query, like this:

collection.fetch({
    query: 'SELECT * FROM table WHERE someField > 10;'
});

The developer can put any arbitrary query in the **query** property of the **opts** object passed in to the fetch() function. That queried is assumed to be executed on the database associated with the given model/collection.