Added previous arduino implementations.

Problem2.hpp

@@ -0,0 +1,18 @@
+#ifndef Problem2_h
+#define Problem2_h
+
+#include "ProblemBase.hpp"
+
+class Problem2 : public ProblemBase {
+
+private:
+  unsigned long value1 = 0;
+  unsigned long value2 = 1;
+  unsigned long fibonacci;
+
+public:
+  Problem2();
+  bool Step();
+};
+
+#endif