* Add lib/rocprofiler-register/details/filesystem.hpp
- this provides backwards compatibility for compiler which do not have <filesystem>
- use <experimental/filesystem> when not available
* Update tests/CMakeLists.txt
- test executables link to dl library (via CMAKE_DL_LIBS)
* Update CI workflow
- include ubuntu-20.04 jobs
* Update README
- Overview
- Contributing
- Build and install
* Update workflows
- branches reflect new amd-mainline and amd-staging names instead of main and develop