Ignore all packages

For some use cases it might be useful to turn off package management in aconfmgr (e.g. packages are managed by another declarative package manager like pacdef. This can be accomplished by the following helper function:

function IgnorePackagesAll() {
    mapfile -t ignore_foreign_packages < <(pacman -Qqm)
    mapfile -t ignore_packages < <(pacman -Qqn)
}

Also remember to call the function:

IgnoreAllPackages