add events and rooms migrations

neo-util/src/events.rs

@@ -0,0 +1,20 @@
+pub static STATE_EVENTS: &[&str] = &[
+    "m.room.create",
+    "m.room.canonical_alias",
+    "m.room.join_rules",
+    "m.room.member",
+    "m.room.power_levels",
+];
+
+pub enum EventCategory {
+    StateEvent,
+    MessageEvent,
+}
+
+pub fn classify_event(event_type: &str) -> EventCategory {
+    if STATE_EVENTS.contains(&event_type) {
+        EventCategory::StateEvent
+    } else {
+        EventCategory::MessageEvent
+    }
+}

neo-util/src/lib.rs

@@ -1 +1,2 @@
+pub mod events;
 pub mod password;