feat: expose draw total framecount

Dalamud/Interface/UiBuilder.cs

@@ -120,6 +120,11 @@ namespace Dalamud.Interface
             set => Service<InterfaceManager>.Get().OverrideGameCursor = value;
         }
 
+        /// <summary>
+        /// Gets the count of Draw calls made since plugin creation.
+        /// </summary>
+        public ulong FrameCount { get; private set; } = 0;
+
         /// <summary>
         /// Gets or sets a value indicating whether statistics about UI draw time should be collected.
         /// </summary>
@@ -283,6 +288,8 @@ namespace Dalamud.Interface
                 this.hasErrorWindow = true;
             }
 
+            this.FrameCount++;
+
             if (DoStats)
             {
                 this.stopwatch.Stop();