Add mod configuration commands

[VorTechnix]

One part of the world that worldedit and WEA don't touch yet is the world-mods. There should be commands to list enabled mods and (if possible) to save and restore enabled lists (so that we could enable all the mods in one world that are/were enabled in another).

It would also be nice to be able to pack all enabled mods to the world mods folder and update any that are already packed.

[VorTechnix]

There may already be a mod that does this but if it does I didn't find it when searching Content DB.

[sbrl]

Enabling and disabling worldmods isn't something that can be easily done in a standardised way though?

To list the currently enabled mods there's the /mods builtin command.

Further, we can't touch other mods' directories in worldeditadditions because of the sandboxing feature of Minetest.

[VorTechnix]

Further, we can't touch other mods' directories in worldeditadditions because of the sandboxing feature of Minetest.

We shouldn't need to.

Enabling and disabling worldmods isn't something that can be easily done in a standardised way though?

I'll look into that when I have a moment.