wip integration of client.request and ServerConfig

+ Client get return reference
+ wip binary flags for http_method
+ moved config parser files

srcs/Client.hpp

@@ -30,11 +30,12 @@ class Client
 		std::string		response;
 		unsigned int	status;
 
-		std::string		get_method();
-		std::string		get_path();
-		std::string		get_version();
-		std::string		get_body();
-		std::string		get_headers(std::string key);
+		// const functions ?
+		std::string		&get_method();
+		std::string		&get_path();
+		std::string		&get_version();
+		std::string		&get_body();
+		std::string		&get_headers(const std::string &key);
 
 		void	parse_request();