Add some Http3 skeleton

src/Http3App.h

@@ -0,0 +1,33 @@
+#include "App.h"
+
+#include "Http3Response.h"
+#include "Http3Request.h"
+#include "Http3Context.h"
+
+namespace uWS {
+
+    struct QuicApp {
+        Http3Context *http3Context;
+
+        QuicApp(SocketContextOptions options = {}) {
+            /* Create the http3 context */
+            http3Context = Http3Context::create((us_loop_t *)Loop::get(), options);
+        }
+
+        QuicApp &listen(int port, std::function<void(void *)> cb) {
+            return *this;
+        }
+
+        QuicApp &get(std::string path, std::function<void(Http3Response *, Http3Request *)> cb) {
+            // http3Context->onHttp, internally using httprouter
+
+            return *this;
+        }
+
+        void run() {
+
+        }
+    };
+
+
+}

src/Http3Context.h

@@ -0,0 +1,17 @@
+namespace uWS {
+    struct Http3Context {
+        static Http3Context *create(us_loop_t *loop, us_socket_context_options_t options) {
+            return nullptr;
+
+            // call init here after setting the ext to Http3ContextData
+        }
+
+        void init() {
+            // set all callbacks here
+        }
+
+        void onHttp() {
+            // modifies the router we own as part of Http3ContextData, used in callbacks set in init
+        }
+    };
+}

src/Http3Request.h

@@ -0,0 +1,6 @@
+namespace uWS {
+
+    struct Http3Request {
+        // really the same thing as HttpRequest with same rules
+    };
+}

src/Http3Response.h

@@ -0,0 +1,11 @@
+namespace uWS {
+
+    struct Http3Response {
+        // has a quic stream
+
+        void end(std::string_view data) {
+            
+        }
+    };
+
+}