Add CRUD support for SQL array and JSON columns

[aeberhart]

Postgres example:

CREATE TABLE sal_emp (
    name            text primary key,
    pay_by_quarter  integer[],
    schedule        text[][],
    json                jsonb
);

The UI works fine but we cannot edit the values.

ERROR: column "json" is of type jsonb but expression is of type character varying Hint: You will need to rewrite or cast the expression. Position: 63

For arrays, we might be able to get the type info from JDBC and generate the JSON schema.
For JSONb, we could either "sense" the data or provide the schema