Chore: split component to transport

transport/ssr/obfs/plain.go

@@ -0,0 +1,15 @@
+package obfs
+
+import "net"
+
+type plain struct{}
+
+func init() {
+	register("plain", newPlain, 0)
+}
+
+func newPlain(b *Base) Obfs {
+	return &plain{}
+}
+
+func (p *plain) StreamConn(c net.Conn) net.Conn { return c }