add notes field to database-create and overview

Please add a "notes"-field to /CMD_DB_CREATE and /CMD_DB

I hereby request too add a "notes"-field to provide more detailed info about a given database.

This may be interresting for severals since mysql has a limit to create db-users and db-names over a certain string-length (16?). Given useames around 10 chars this creates certain limitations.

Additional custom info (notes) would mitigate this limit insomeway

RFC