Scripts/Commands: New argument parsing methodology (PR #22363)

- Detect the arguments accepted by the command handler
- Tokenize out those arguments automatically and feed them to the handler
- Unmatched rest of the string can be accepted by trailing char const* or CommandArgs*

(cherry picked from commit 66a87c4642)

src/common/Utilities/Util.cpp

@@ -22,6 +22,8 @@
 #include <utf8.h>
 #include <algorithm>
 #include <sstream>
+#include <string>
+#include <cctype>
 #include <cstdarg>
 #include <ctime>
 
@@ -755,6 +757,12 @@ bool StringToBool(std::string const& str)
     return lowerStr == "1" || lowerStr == "true" || lowerStr == "yes";
 }
 
+bool StringContainsStringI(std::string const& haystack, std::string const& needle)
+{
+    return haystack.end() !=
+        std::search(haystack.begin(), haystack.end(), needle.begin(), needle.end(), [](char c1, char c2) { return std::toupper(c1) == std::toupper(c2); });
+}
+
 float DegToRad(float degrees)
 {
     return degrees * (2.f * float(M_PI) / 360.f);