fix room version comparisons

Fixes a set of bugs introduced by 00b77144c1,
where we replaced explicit `RoomVersionId` matches with `version < V11`
comparisons. The `Ord` impl on `RoomVersionId` does not work like that,
and is in fact a lexicographic string comparison[1]. The most visible
effect of these bugs is that incoming redaction events would sometimes
be ignored.

Instead of reverting to the explicit matches, which were quite verbose,
I implemented a `RoomVersion` struct that has flags for each property
that we care about. This is similar to the approach used by ruma[2] and
synapse[3].

[1]: 7cfa3be0c6/crates/ruma-common/src/identifiers/room_version_id.rs (L136)
[2]: 7cfa3be0c6/crates/ruma-state-res/src/room_version.rs
[3]: c856ae4724/synapse/api/room_versions.py

src/api/client_server/membership.rs

@@ -1032,8 +1032,9 @@ async fn join_room_by_id_helper(
 
         info!("Running send_join auth check");
         let authenticated = state_res::event_auth::auth_check(
-            &state_res::RoomVersion::new(&room_version_id)
-                .expect("room version is supported"),
+            &state_res::RoomVersion::new(&room_version_id).map_err(|_| {
+                Error::UnsupportedRoomVersion(room_version_id.clone())
+            })?,
             &parsed_join_pdu,
             // TODO: third party invite
             None::<PduEvent>,