BINARY datatype for MySQL

The missing BINARY datatype has been added for MySQL diagrams now. 

👩‍💻 Bit of tech background: The default set of datatypes was dependant on what's supported in Laravel migration's blueprint schema. By default, Laravel converts the -'binary()' definition to BLOB in it's MySQL driver, hence the missing BINARY datatype. We've now added custom logic to support additional data types (outside of Laravel defaults), and this is one of the first ones added.