ui: language standard

Added language standard select functionality to gui and language standard to project settings.

src/lib/data/parser/Parser.h

@@ -22,6 +22,8 @@ public:
 		std::vector<FilePath> frameworkSearchPaths;
 		std::vector<std::string> compilerFlags;
 		bool logErrors;
+		std::string language;
+		std::string languageStandard;
 	};
 
 	Parser(ParserClient* client);