Made the request stuff work.

source/mijin/net/http.hpp

@@ -10,11 +10,21 @@
 #include "./socket.hpp"
 #include "./url.hpp"
 #include "../container/boxed_object.hpp"
+#include "../container/typeless_buffer.hpp"
 #include "../internal/common.hpp"
 #include "../io/stream.hpp"
 
 namespace mijin
 {
+namespace http_method
+{
+inline constexpr std::string GET = "GET";
+inline constexpr std::string POST = "POST";
+inline constexpr std::string HEAD = "HEAD";
+inline constexpr std::string PUT = "PUT";
+inline constexpr std::string DELETE = "DELETE";
+}
+
 struct HTTPVersion
 {
     unsigned major;
@@ -30,13 +40,20 @@ struct HTTPRequest
     std::string body;
 };
 
+struct HTTPRequestOptions
+{
+    std::string method = "GET";
+    std::multimap<std::string, std::string> headers;
+    TypelessBuffer body;
+};
+
 struct HTTPResponse
 {
     HTTPVersion version;
     unsigned status;
     std::string statusMessage;
     std::multimap<std::string, std::string> headers;
-    std::string content;
+    TypelessBuffer body;
 };
 
 class HTTPStream