codecs update

codec/packet/login/server/hello.go

@@ -0,0 +1,22 @@
+package server
+
+import (
+	"github.com/Tnze/go-mc/data/packetid"
+	"github.com/google/uuid"
+)
+
+//codec:gen
+type LoginHello struct {
+	Name string
+	UUID uuid.UUID `mc:"UUID"`
+}
+
+func (LoginHello) PacketID() packetid.ServerboundPacketID {
+	return packetid.ServerboundLoginHello
+}
+
+func init() {
+	registerPacket(packetid.ServerboundLoginHello, func() ServerboundPacket {
+		return &LoginHello{}
+	})
+}