Profiling scopes

- Added profiling scope utility
- Added profiling scopes around some functions
- Testing StreamWriter and FileStream

Runtime/ProfilerUtility.cs

@@ -0,0 +1,26 @@
+using UnityEngine;
+using UnityEngine.Profiling;
+
+namespace VertexColor.ScenePartition
+{
+    public static class ProfilerUtility
+    {
+        public class ProfilerScope : System.IDisposable
+        {
+            public ProfilerScope(string name)
+            {
+                Profiler.BeginSample(name);
+            }
+
+            public ProfilerScope(string name, Object target)
+            {
+                Profiler.BeginSample(name, target);
+            }
+
+            public void Dispose()
+            {
+                Profiler.EndSample();
+            }
+        }
+    }
+}

Runtime/ProfilerUtility.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 7338cbb3bcd0a224fbfca184c7efcd7e
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: