fix missing '.cpp' suffix to some recently included source files
fix missing '.cpp' suffix to some recently included source files

TeoTwawki/libtorrent,hamedramzi/libtorrent,snowyu/libtorrent,TeoTwawki/libtorrent,snowyu/libtorrent,TeoTwawki/libtorrent,hamedramzi/libtorrent,TeoTwawki/libtorrent,hamedramzi/libtorrent,snowyu/libtorrent,hamedramzi/libtorrent,snowyu/libtorrent,TeoTwawki/libtorrent,snowyu/libtorrent,TeoTwawki/libtorrent,hamedramzi/libtorrent,snowyu/libtorrent,hamedramzi/libtorrent