Move up non-generic collection types and add debug view.

Assets/Cryville/Common/Collections/IPairList.cs

@@ -0,0 +1,8 @@
+using System.Collections;
+
+namespace Cryville.Common.Collections {
+	public interface IPairList : IList {
+		void Add(object key, object value);
+		void Insert(int index, object key, object value);
+	}
+}