Add support for AWS Redshift super data type

Vertabelo does not appear to support the AWS Redshift SUPER data type (see https://docs.aws.amazon.com/redshift/latest/dg/query-super.html#dynamic-typing-lax-processing). The SUPER data type is not offered in the type dialog in the Table Properties pane, and if you try to import an SQL file with instances of the SUPER data type, it causes the import to fail.

Please add support for the AWS Redshift SUPER data type.