Add surfer waveform viewer

[hpretl]

Rust needs to be updated first (https://www.reddit.com/r/rust/comments/3gppup/how_do_i_update_rust_to_the_latest_version_on/?sort=top).

Installation with (https://gitlab.com/surfer-project/surfer)

cargo install --git https://gitlab.com/surfer-project/surfer surfer

[FRoith]

The workaround of setting the environment variable LIBGL_ALWAYS_INDIRECT=0 works to get surfer running in docker, for more info see my reply in the gitlab issue

[hpretl]

Thanks for this WA, I'll test it and see whether this is a workable solution (speedwise).