Merge branch 'pr_nvidia' into 'devel'

README.md

configure.sh

doc/counter_ex.h

doc/network.md

doc/nvidia_gpu.md

makefile

src/amd_rapl.c

src/memory.c

src/memory.h

src/network.c

src/nvidia_gpu.c

src/nvidia_gpu.h

src/util.h

tests/main.c

tests/memory.c

tests/small_test.h

tests/util.c