insert sort, profile updates revamp

Signed-off-by: William Casarin <jb55@jb55.com>

damus/Util/InsertSort.swift

@@ -0,0 +1,29 @@
+//
+//  InsertSort.swift
+//  damus
+//
+//  Created by William Casarin on 2022-05-09.
+//
+
+import Foundation
+
+
+func insert_uniq_sorted_event(events: inout [NostrEvent], new_ev: NostrEvent) -> Bool {
+    var i: Int = 0
+    
+    for event in events {
+        // don't insert duplicate events
+        if new_ev.id == event.id {
+            return false
+        }
+        
+        if new_ev.created_at < event.created_at {
+            events.insert(new_ev, at: i)
+            return true
+        }
+        i += 1
+    }
+    
+    events.append(new_ev)
+    return true
+}