Fix Namespaces, add ends_with functions

include/Random.h

@@ -0,0 +1,13 @@
+#ifndef RANDOM_H
+#define RANDOM_H
+
+#include <string>
+
+
+namespace Random {
+
+std::string CreateRandomString(size_t length);
+
+} // namespace Random
+
+#endif // RANDOM_H