fix various warning

add b3ResourcePath utility, to locate resources relative to executable

examples/Utils/b3ResourcePath.h

@@ -0,0 +1,13 @@
+#ifndef _B3_RESOURCE_PATH_H
+#define _B3_RESOURCE_PATH_H 
+
+#include <string>
+
+class b3ResourcePath
+{
+public:
+	static int getExePath(char* path, int maxPathLenInBytes);
+	static int findResourcePath(const char* sourceName, char* resourcePath, int maxResourcePathLenInBytes);
+};
+#endif
+