replace Bytearray with FFI implementation

src/logic/scripting/lua/libs/libnetwork.cpp

@@ -109,13 +109,13 @@ static int l_send(lua::State* L, network::Network& network) {
         }
         lua::pop(L);
         connection->send(buffer.data(), size);
-    } else if (auto bytes = lua::touserdata<lua::LuaBytearray>(L, 2)) {
-        connection->send(
-            reinterpret_cast<char*>(bytes->data().data()), bytes->data().size()
-        );
     } else if (lua::isstring(L, 2)) {
         auto string = lua::tolstring(L, 2);
         connection->send(string.data(), string.length());
+    } else {
+        auto string = lua::bytearray_as_string(L, 2);
+        connection->send(string.data(), string.length());
+        lua::pop(L);
     }
     return 0;
 }
@@ -140,13 +140,10 @@ static int l_recv(lua::State* L, network::Network& network) {
             lua::pushinteger(L, buffer[i] & 0xFF);
             lua::rawseti(L, i+1);
         }
+        return 1;
     } else {
-        lua::newuserdata<lua::LuaBytearray>(L, size);
-        auto bytearray = lua::touserdata<lua::LuaBytearray>(L, -1);   
-        bytearray->data().reserve(size);
-        std::memcpy(bytearray->data().data(), buffer.data(), size);
+        return lua::create_bytearray(L, buffer.data(), size);
     }
-    return 1;
 }
 
 static int l_available(lua::State* L, network::Network& network) {