Further compression and png work.

src/core/StringUtils.cpp

@@ -25,6 +25,16 @@ bool StringUtils::IsAlphabetical(char c)
     return std::isalpha(c);
 }
 
+std::vector<unsigned char> StringUtils::toBytes(const std::string& input)
+{
+    return {input.begin(), input.end()};
+}
+
+std::string StringUtils::toString(const std::vector<unsigned char>& bytes)
+{
+    return {bytes.begin(), bytes.end()};
+}
+
 std::vector<std::string> StringUtils::toLines(const std::string& input)
 {
     auto result = std::vector<std::string>{};