Return the current field definition in PROCEDURE ANALYSE

Extend PROCEDURE ANALYSE output with the current field definition, e.g.:

mysql> select * from t2 procedure analyse()\G
*************************** 1. row ***************************
             Field_name: test.t2.id
      Field_type: INT(11) NOT NULL
              Min_value: 1
              Max_value: 2
             Min_length: 1
             Max_length: 1
       Empties_or_zeros: 0
                  Nulls: 0
Avg_value_or_avg_length: 1.5000
                    Std: 0.5000
      Optimal_fieldtype: ENUM('1','2') NOT NULL
*************************** 2. row ***************************
             Field_name: test.t2.a
      Field_type: INT(11) NOT NULL
              Min_value: 1
              Max_value: 2
             Min_length: 1
             Max_length: 1
       Empties_or_zeros: 0
                  Nulls: 0
Avg_value_or_avg_length: 1.5000
                    Std: 0.5000
      Optimal_fieldtype: ENUM('1','2') NOT NULL
*************************** 3. row ***************************
             Field_name: test.t2.foo
      Field_type: INT(11) NOT NULL
              Min_value: 1
              Max_value: 2
             Min_length: 1
             Max_length: 1
       Empties_or_zeros: 0
                  Nulls: 0
Avg_value_or_avg_length: 1.5000
                    Std: 0.5000
      Optimal_fieldtype: ENUM('1','2') NOT NULL
3 rows in set (0.00 sec)