tl-expected: init at 2019-11-11

This version is 5 commits ahead of version 1.0.0 because we need at
least one patch [0] that prevents CMake from trying to use Git to fetch
the already fetched submodule...
Also some files have the wrong formatting (CRLF line endings) which
makes the patching really messy. At this point is seems therefore better
to use the master version instead (1.0.0 is pretty broken regarding
CMake).

[0]: https://github.com/TartanLlama/expected/commit/0ca73ee30e72a54b285ef1e26fd9ecc83c81e5ea