add initial examples, replacing the 'Demos/Demos3'. Will make it work cross-platform, OpenGL3/OpenGL2 and add more examples to it.

examples/OpenGLWindow/LoadShader.h

@@ -0,0 +1,18 @@
+#ifndef _LOAD_SHADER_H
+#define _LOAD_SHADER_H
+
+#include "OpenGLInclude.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif//__cplusplus
+
+GLuint gltLoadShaderPair(const char *szVertexProg, const char *szFragmentProg);
+
+#ifdef __cplusplus
+}
+#endif//__cplusplus
+
+#endif//_LOAD_SHADER_H
+
+