Cleans up permissions a lot and adds missing permissions to plugin.yml

Removes the checking of both parent and child by adding the child permissions to plugin.yml
Cleans comments in the PermissionHelper class
Renames hasPermDeep to hasPermissionImplicit as I finally understand how it's supposed to work
Adds missing unmock() to prevent test errors
Adds a ton of permissions which were mentioned in the code, but did not exist in the plugin.yml

src/main/java/net/knarcraft/stargate/utility/EntityHelper.java

@@ -14,8 +14,9 @@ public final class EntityHelper {
     /**
      * Gets the max size of an entity along its x and z axis
      *
-     * <p>This function gets the ceiling of the max size of an entity, thus calculating the smallest square needed to
-     * contain the entity.</p>
+     * <p>This function gets the ceiling of the max size of an entity, thus calculating the smallest box, using whole
+     * blocks as unit, needed to contain the entity. Assuming n is returned, an (n x n) box is needed to contain the 
+     * entity.</p>
      *
      * @param entity <p>The entity to get max size for</p>
      * @return <p>The max size of the entity</p>