Do we want static analysis?

[rrahn]

https://scan.coverity.com/faq#what-is-coverity-scan

Can be integrated into travis - maybe as nightly?

Resolution 10.08.2020

Try it out if it is easy to set up. Don't try to hard if it does not work. If it works make it a nightly job on travis CI.

[eseiler]

I tried it.
Unfortunately, they do not support -fconcepts/-std=c++20 (-std=c++17 is supported).

However, once they support it, the actual process is easy and setting it up in some weekly job should be no problem.

[eseiler]

Added to #198
Still no full cpp20 support