Added command group loading

Signed-off-by: Ian Macalinao <ianmacalinao@gmail.com>
Removed inheritance from the config. It overcomplicates things.

Signed-off-by: Ian Macalinao <ianmacalinao@gmail.com>
Add permissions for bypassing cooldowns to plugin.yml

Signed-off-by: Ian Macalinao <ianmacalinao@gmail.com>