Flatpak Manifest Licensing

[Justin Zobel]

Hey Everyone,

As Binary Factory is to be shut down soon we are moving the Flatpak 
manifests to their individual GitLab repositories.

Most of this is fairly simple, however, some GitLab repositories have 
enabled reuse linting (which is great). The Flatpak manifests I have 
come across so far have not had any licensing information included. This 
email is just to start a discussion about what everyone's thoughts are 
about which license to apply for them.

The GitLab CI files are licensed as CC0-1.0 and I'm thinking that this 
might be a suitable license as the Flatpak manifest files are simply 
text files.
# SPDX-FileCopyrightText: None
# SPDX-License-Identifier: CC0-1.0

Let me know your thoughts.

Justin