Please allow use of personal-files for gitl [Was: Classic confinement for gitl]

store-requests
32

@jdstrand I’m also requesting write for $HOME/.gitl_history as I’m writing history to that file.
https://github.com/wieczorek1990/gitl/blob/master/snap/snapcraft.yaml

EDIT:
I renamed the plug from gitconfig to git, added a gitl plug.