stats: return total packets and bytes in getStats()
stats: return total packets and bytes in getStats()

atheurer/MoonGen,emmericp/MoonGen,NetronomeMoongen/MoonGen,duk3luk3/MoonGen,scholzd/MoonGen,bmichalo/MoonGen,gallenmu/MoonGen,gallenmu/MoonGen,duk3luk3/MoonGen,gallenmu/MoonGen,NetronomeMoongen/MoonGen,dschoeffm/MoonGen,bmichalo/MoonGen,dschoeffm/MoonGen,duk3luk3/MoonGen,scholzd/MoonGen,emmericp/MoonGen,kidaa/MoonGen,kidaa/MoonGen,kidaa/MoonGen,gallenmu/MoonGen,wenhuizhang/MoonGen,bmichalo/MoonGen,atheurer/MoonGen,wenhuizhang/MoonGen,atheurer/MoonGen,gallenmu/MoonGen,gallenmu/MoonGen,NetronomeMoongen/MoonGen,gallenmu/MoonGen,scholzd/MoonGen,emmericp/MoonGen,gallenmu/MoonGen,bmichalo/MoonGen,dschoeffm/MoonGen,wenhuizhang/MoonGen