Wes xx mediapipe integration

Packages/com.github.homuler.mediapipe/Runtime/Scripts/Framework/Port/StatusOr.cs

@@ -0,0 +1,29 @@
+// Copyright (c) 2021 homuler
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+using System;
+
+namespace Mediapipe
+{
+  public abstract class StatusOr<T> : MpResourceHandle
+  {
+    public StatusOr(IntPtr ptr) : base(ptr) { }
+
+    public abstract Status status { get; }
+    public virtual bool Ok()
+    {
+      return status.Ok();
+    }
+
+    public virtual T ValueOr(T defaultValue = default)
+    {
+      return Ok() ? Value() : defaultValue;
+    }
+
+    /// <exception cref="MediaPipePluginException">Thrown when status is not ok</exception>
+    public abstract T Value();
+  }
+}