Default database configuration

[marky291]

As a user when creating a mysql database, I do not want to have to think about what collation and charset to use, I should see default values with optional change if needed:

'MySQL Server has a server character set and a server collation. By default, these are utf8mb4 and utf8mb4_0900_ai_ci , but they can be set explicitly at server startup on the command line or in an option file and changed at runtime.'

https://dev.mysql.com/doc/refman/8.4/en/charset-server.html#:~:text=MySQL%20Server%20has%20a%20server,file%20and%20changed%20at%20runtime.

[saeedvaziry]

#939