Improved GitHub Action to run clang-format as part of clang-tidy
* Simplify clang-tidy workflow
* Added modernize-use-using, modernize-redundant-void-arg, readability-static-accessed-through-instance
* Add nolint for libecl typedefs
* Moved UnitSystem from RiaEclipseUnitTools to RiaDefines.
- Renamed UnitSystem to EclipseUnitSystem
- Replaced header includes and removed obsolete includes of RiaEclipseUnitTools.h
* Moved result name functions into separate file.
* Minor cleanup
Co-authored-by: rubenthoms <rubenthoms@users.noreply.github.com>
Co-authored-by: Magne Sjaastad <magne.sjaastad@ceetronsolutions.com>
Co-authored-by: magnesj <magnesj@users.noreply.github.com>