Fix google-readability-braces-around-statements.

The fmt library happily accepts std::string without
any conversions.

Dmitri Naumov authored 6 years ago and Dmitri Naumov committed 5 years ago

Include spdlog via BaseLib/Logging.h, which
provides macro replacements for
ERR/DBUG/WARN/INFO...

Dmitri Naumov authored 5 years ago and Lars Bilke committed 5 years ago

Adapt tests.

Include "filesystem.h" (a generated header file) which provides
fs namespace:

...
auto geo_file = fs::temp_directory_path() /= "createSurface.geo";

Requires gcc 8.

Clang format run on near-the-header lines.

Happy New Year