Enhancement: Add a method DbParameter into the QueryField object.

[mikependon]

Describe the enhancement

An object of type IDbDataParameter must be added as a property into the QueryField object. This property will only be set if the QueryField object has already been used in any execution.

var where = new QueryField("LastName", Operation.Like, "D%");
var result = connection.Query<Person>(where);
var parameter = where.DbParameter;

Imagine, if the QueryField is a type of DirectionalQueryField and the ParameterDirection is being set as Output/InputOuput, then, you may be able to directly get the reference into the DbParameter object. Though, you can also retrieve the value via QueryField.GetValue().