Feature: JSON Fields

[Merulast]

I would love to see JSON fields supported by cotton. Not including the full syntax but at least the handling of the data itself.

As far as I saw almost all that would left to do seems to

• add a json type
• update bindvalues in order to understand that Objects could be posted as strings
• decode after fetching the values

It's too bad that this could not be just 'added' as feature without recompiling everything :/