add unity doc.

unity/PICO-Unity-Integration-SDK-release_3.4.0/Enterprise/Scripts/Model/LargeSpaceQuickModeInfo.cs

@@ -0,0 +1,20 @@
+namespace Unity.XR.PICO.TOBSupport
+{
+    public class LargeSpaceQuickModeInfo
+    {
+        public bool status;
+        public int length;
+        public int width;
+        public int originType;
+
+        public LargeSpaceQuickModeInfo()
+        {
+        }
+
+        public override string ToString()
+        {
+            return
+                $"{nameof(status)}: {status}, {nameof(length)}: {length}, {nameof(width)}: {width}, {nameof(originType)}: {originType}";
+        }
+    }
+}