Enhancements

Change section and key names in configuration files.
Add support for using Quantumult X rulesets/Clash rule-providers as rule sources.
Optimize codes.

src/multithread.cpp

@@ -76,7 +76,7 @@ std::shared_future<std::string> fetchFileAsync(const std::string &path, const st
     std::shared_future<std::string> retVal;
     if(fileExist(path))
         retVal = std::async(std::launch::async, [path](){return fileGet(path, true);});
-    else if(startsWith(path, "https://") || startsWith(path, "http://") || startsWith(path, "data:"))
+    else if(isLink(path))
         retVal = std::async(std::launch::async, [path, proxy, cache_ttl](){return webGet(path, proxy, cache_ttl);});
     else
         return std::async(std::launch::async, [](){return std::string();});