The brigadier command dispatcher is not capable of executing commands
that redirect more than one.
The exemplary alias 'minecraft:tp' may hence not redirect to 'tp' it
instead has to redirect to 'teleport' as 'tp' itself is merely a
redirect.
Prevent infinite recursion when declaring a cyclic relation between
command nodes via child nodes redirecting to an nth parent by marking a
command node as unwrapped before unwrapping its children.
Adds the ability for plugins to register their own brigadier commands
---------
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Co-authored-by: Bjarne Koll <git@lynxplay.dev>
