Multiple Qualifiers for Data Types Not Working as Expected

[daninus14]

See https://github.com/fukamachi/mito/pull/147

To keep with the style of other places where qualifiers are provided, like in:

(name :col-type (:varchar 64))

It makes sense to allow parsing of multiple qualifiers like this:

(price :col-type (:numeric 10 2))

Or maybe even like this:

(price :col-type (:numeric (10 2)))

I personally prefer the first version.

There's no need for mito to deal with the data types themselves. Probably this is just a matter of checking if there are more items in the list of the :col-type and then just passing them to SQL as a comma separated list.