Updated/added documentation for layer 2-4 header structs
Updated/added documentation for layer 2-4 header structs

werpat/MoonGen,NetronomeMoongen/MoonGen,emmericp/MoonGen,pavel-odintsov/MoonGen,wenhuizhang/MoonGen,bmichalo/MoonGen,dschoeffm/MoonGen,kidaa/MoonGen,gallenmu/MoonGen,duk3luk3/MoonGen,dschoeffm/MoonGen,emmericp/MoonGen,pavel-odintsov/MoonGen,scholzd/MoonGen,gallenmu/MoonGen,werpat/MoonGen,gallenmu/MoonGen,atheurer/MoonGen,bmichalo/MoonGen,wenhuizhang/MoonGen,gallenmu/MoonGen,gallenmu/MoonGen,schoenb/MoonGen,kidaa/MoonGen,schoenb/MoonGen,atheurer/MoonGen,emmericp/MoonGen,NetronomeMoongen/MoonGen,slyon/MoonGen,wenhuizhang/MoonGen,pavel-odintsov/MoonGen,gallenmu/MoonGen,schoenb/MoonGen,scholzd/MoonGen,NetronomeMoongen/MoonGen,scholzd/MoonGen,bmichalo/MoonGen,gallenmu/MoonGen,dschoeffm/MoonGen,atheurer/MoonGen,duk3luk3/MoonGen,kidaa/MoonGen,werpat/MoonGen,duk3luk3/MoonGen,slyon/MoonGen,slyon/MoonGen,bmichalo/MoonGen,slyon/MoonGen,gallenmu/MoonGen