update code paths in the network crate (#4065)

* wip

* fix router

* arc the byroot responses we send

* add placeholder for blob verification

* respond to blobs by range and blobs by root request in the most horrible and gross way ever

* everything in sync is now unimplemented

* fix compiation issues

* http_pi change is very small, just add it

* remove ctrl-c ctrl-v's docs

beacon_node/network/src/sync/network_context.rs

@@ -426,7 +426,7 @@ impl<T: BeaconChainTypes> SyncNetworkContext<T> {
                 "count" => request.block_roots.len(),
                 "peer" => %peer_id
             );
-            Request::BlobsByRoot(request.into())
+            unimplemented!("There is no longer such thing as a single block lookup, since we nede to ask for blobs and blocks separetely");
         } else {
             trace!(
                 self.log,
@@ -467,7 +467,9 @@ impl<T: BeaconChainTypes> SyncNetworkContext<T> {
                 "count" => request.block_roots.len(),
                 "peer" => %peer_id
             );
-            Request::BlobsByRoot(request.into())
+            unimplemented!(
+                "Parent requests now need to interleave blocks and blobs or something like that."
+            )
         } else {
             trace!(
                 self.log,