Enhancements

Fix trying to fetch a ruleset when adding it as a RULE-SET rule to configuration files.
Add URL Decode to username and password field in Telegram-link-style HTTP/Socks 5 links.
Add more function callbacks to template renderer.
Add basic Jinja2Cpp template library support.
INIReader: Add keeping comments and blank lines in direct-save sections.

src/ini_reader.h

@@ -240,7 +240,7 @@ public:
                 strLine.erase(lineSize - 1);
                 lineSize--;
             }
-            if(!lineSize || strLine[0] == ';' || strLine[0] == '#' || (lineSize >= 2 && strLine[0] == '/' && strLine[1] == '/')) //empty lines and comments are ignored
+            if((!lineSize || strLine[0] == ';' || strLine[0] == '#' || (lineSize >= 2 && strLine[0] == '/' && strLine[1] == '/')) && !inDirectSaveSection) //empty lines and comments are ignored
                 continue;
             if(strLine[0] == '[' && strLine[lineSize - 1] == ']') //is a section title
             {