Add parameter to check for explicit permission state

[burdoto]

Fixes #47

[burdoto]

This PR is known to fix #47 inherently; tested on Bukkit and Fabric versions.

[Yann151924]

Please add a settings explicite-permission-check :

options {
   ...
   explicite-permission-check: true
}

If people want to activate this or not and put it at true by default :)

[burdoto]

not sure why this should be deactivatable; it is considered good practice to require explicit permission states for meta permissions, such as autojoin.
do you have an edge case in mind that i didnt come up with?

[Yann151924]

I don't have a specific case in mind but i think it's preferable to have a toggle of it in case someone don't want this behavior.

[burdoto]

this only affects autojoin permissions; as old usages simply fall back to not requiring explicit state if not necessary