Merge branch 'feature/clean'

src/CMakeFiles/hybrid-sog.dir/depend.make

src/CMakeFiles/hybrid-sog.dir/flags.make

src/CMakeFiles/hybrid-sog.dir/link.txt

src/CMakeFiles/hybrid-sog.dir/main.cpp.o

src/CMakeFiles/hybrid-sog.dir/progress.make

src/CMakeFiles/hybrid-sog.dir/sylvan_sog.c.o

src/CMakeFiles/hybrid-sog.dir/threadSOG.cpp.o

src/CMakeFiles/progress.marks

src/Makefile

src/cmake_install.cmake