Allow to customize `convert_data_type` behavior when SQL planning

[goldmedal]

Is your feature request related to a problem or challenge?

In datafusion-sqlparser-rs, we define many SQL types but they aren't all required by the DataFusion core.

datafusion/datafusion/sql/src/planner.rs

Lines 524 to 529 in b0b6e44

	// Explicitly list all other types so that if sqlparser
	// adds/changes the `SQLDataType` the compiler will tell us on upgrade
	// and avoid bugs like https://github.com/apache/datafusion/issues/3059
	SQLDataType::Nvarchar(_)
	| SQLDataType::JSON
	| SQLDataType::Uuid

I think it's good to provide a way to extend or customize the behavior for SQL type to DataFusion type (maybe changed to NativeType in the future) for the downstream project that may want to use those unsupported SQL types.

Describe the solution you'd like

Introduce a new API for ExprPlanner,

    /// Plan SQL type to DataFusion data type
    ///
    /// Returns None if not possible
    fn plan_data_type(&self, _sql_type: &ast::DataType) -> Option<DataType> {
        None
    }

Try planning the SQL type using ExprPlanner first. If not present, revert to the default behavior.

Describe alternatives you've considered

No response

Additional context

No response