Moved String helper functions to service class

src/Services/StringService.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace Bloom::Services
+{
+    class StringService
+    {
+    public:
+        static std::string asciiToLower(std::string str);
+
+        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);
+    };
+}