`bs.menu`: Replace the core module inside the dev datapack

[aksiome]

The main goal of this module is to be able to load or unload modules at will. Also this module should incorporate the old menu where the user can easily setup his log tags, update gamerules, ...

While creating the module we should also consider how we store in game metadata for each module !

[aksiome]

We could include generated commands, such as a list of playsound or particle effects. This would help map makers quickly find sounds or particles, which can often be a tedious process. Also it might be worth considering a separate module that can easily generate menus and interactive chats.