split router::serve units.

Signed-off-by: Jason Volk <jason@zemos.net>

src/router/mod.rs

@@ -1,8 +1,8 @@
-pub(crate) mod layers;
-pub(crate) mod request;
-pub(crate) mod router;
-pub(crate) mod run;
-pub(crate) mod serve;
+mod layers;
+mod request;
+mod router;
+mod run;
+mod serve;
 
 extern crate conduit_core as conduit;