Add support for parsing $XDG_CONFIG_HOME/mr-label-maker/tokens.toml
Supports TOML files in the form of:
["https://gitlab.example.com"]
token = "blah blah"
If --token
is missing and GITLAB_TOKEN
is unset, look up the token value
in that file. This way a user can set this up once and doesn't have to
manually supply the token value for each project.