[ENHANCEMENT] I would like to add the ability to customize database columns

[MoeLuoYu]

Describe the feature you'd like to have implemented
I'd like to add the ability to customize the database columns with the keys that MySQL stores
Just like Authme, make each MySQL column customizable with a Name
For example, customize the player name column to username
Customize the password column as password

A loyal LimboAuth user
Thank you very much!