Added COROUTINE and DELEGATE class examples.

include/tool/examples/coroutine_example.cpp

@@ -0,0 +1,48 @@
+#include <cstdio>
+#include <string>
+
+#include <tool/coroutine.h>
+
+using namespace std;
+
+typedef COROUTINE<int, int> MyCoroutine;
+
+class MyClass {
+
+	public:
+		int CountTo(int n)
+		{
+			printf("%s: Coroutine says hi. I will count from 1 to %d and yield each value.\n", __FUNCTION__, n);
+			for(int i = 1; i <= n; i++)
+			{
+				printf("%s: Yielding %d\n", __FUNCTION__, i);
+				cofunc.Yield(i);
+			}
+		}
+
+		void Run()
+		{
+			cofunc = MyCoroutine (this, &MyClass::CountTo);
+			printf("%s: Calling coroutine that will count from 1 to 5.\n", __FUNCTION__);
+			cofunc.Call(5);
+			while (cofunc.Running())
+			{
+				printf("%s: Got value: %d\n", __FUNCTION__, cofunc.ReturnValue());
+				cofunc.Resume();
+			}
+	
+			printf("%s: Done!\n", __FUNCTION__);
+		}
+
+		MyCoroutine cofunc;
+};
+
+
+main()
+{
+	MyClass obj;
+
+	obj.Run();
+	
+	return 0;
+}