Moved toHex functions to String helper class

src/Helpers/String.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <string>
+#include <vector>
 
 namespace Bloom
 {
@@ -12,5 +13,9 @@ namespace Bloom
         static std::string asciiToUpper(std::string str);
 
         static bool isAscii(const std::string& str);
+
+        static std::string toHex(unsigned char value);
+        static std::string toHex(const std::vector<unsigned char>& data);
+        static std::string toHex(const std::string& data);
     };
 }