inklingreader: init at unstable-2017-09-07

[totoroot]

Description of changes

Add inklingreader, a GNU/Linux-friendly version of the Wacom Inkling SketchManager.

The project isn't in active development any more, but works well and builds without issues for the most recent revision. As far as I've seen, PRs are still welcome, and the developer seems to respond, even if with a little bigger latency.

The tool is very useful for people like me who still own a Wacom Inkling. Without inklingreader I would have got rid of the Inkling because its usability got crippled by Wacom no longer supporting the official software and never caring enough about Linux users.

Things done

• Built on platform(s)
  • [x] x86_64-linux
  • [ ] aarch64-linux
  • [ ] x86_64-darwin
  • [ ] aarch64-darwin
• [ ] For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• [x] Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• [x] Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• [x] Tested basic functionality of all binary files (usually in ./result/bin/)
• 22.11 Release Notes (or backporting 22.05 Release notes)
  • [ ] (Package updates) Added a release notes entry if the change is major or breaking
  • [ ] (Module updates) Added a release notes entry if the change is significant
  • [ ] (Module addition) Added a release notes entry if adding a new NixOS module
  • [ ] (Release notes changes) Ran nixos/doc/manual/md-to-db.sh to update generated release notes
• [x] Fits CONTRIBUTING.md.