sql2dbml fails for Mysql default time

Hi, sql2dmbl returns an error when my table definition includes default time values

Sample create table script
```
CREATE TABLE test_table
(
id INT NOT NULL ,
time_field TIME DEFAULT 09:00:00,
PRIMARY KEY (id)
)
;
```

Error:
ERROR: You have a syntax error at "test_db.ddl" line 4 column 4. Expected ")" or fields but "t" found.

Can you please support mysql default time?