Implementing a kind of "backup" for the working directory

**Topic**
Implementing "Checkpointing" in for the working directory before actions that will change/destroy it

**Your thoughts**
Of course, everyone knows there is no built-in "undo" for changes to the working directory. But I've come across a few recommended aliases like:

`co = "!git stash push -m \"co backup\"; git stash apply; git checkout \"$@\"" `

Perhaps something like this can be implemented into lazygit