Updated plugin to latest bank version.

Supports 1.16!

UPDATING FROM PRE 4.1.0 BUILDS:
PLEASE READ THE FOLLOWING:

1. Backup any old bank data, the plugin will attempt to backup sqlite storage but not mysql!
2. Download and install new bank jar
3. After starting the server it will prompt you to edit the upgrade.yml
4. Read the upgrade.yml!
5. Restart server and wait for conversion

Features:
Configs will now no longer lose comments and can be reloaded safely
Commands.yml to edit all commands & permissions
Inventories.yml to edit all inventories & permissions
Permissions.yml to edit & enable/disable extra permissions
Citizens now uses a trait instead of ids
Ability to add any block as a bank block