Deconstruct ast - Githubissues

So there are a few things that need doing:

[x] Add a debugging function for the ast
[x] Remove the popping of the linked list when traversing them
[x] Replace the popping with an auto resetter
[x] Check whether there are any leaks still present after doing so
[x] optional: add a macro that can be easily turned on and of the show the underlying structure of the ast

saladuit / minishell