Create NeochatRoomMember as a shim for RoomMember

The intention is that NeochatRoomMember can be created passed to QML and then be fully managed by it. It effectively just grabs the current RoomMember, calls the correct function then discards it so that we don't end up trying to access an already deleted state event.

src/models/messagecontentmodel.h

@@ -6,11 +6,13 @@
 #include <QAbstractListModel>
 #include <QQmlEngine>
 
+#include <Quotient/events/roomevent.h>
 #include <Quotient/room.h>
 
 #include "enums/messagecomponenttype.h"
 #include "eventhandler.h"
 #include "itinerarymodel.h"
+#include "neochatroommember.h"
 
 struct MessageComponent {
     MessageComponentType::Type type = MessageComponentType::Other;
@@ -115,6 +117,7 @@ private:
     QPointer<NeoChatRoom> m_room;
     QString m_eventId;
     QString m_eventSenderId;
+    std::unique_ptr<NeochatRoomMember> m_eventSenderObject = nullptr;
     Quotient::RoomEventPtr m_event;
 
     bool m_isPending;
@@ -122,6 +125,8 @@ private:
     bool m_isReply;
 
     void initializeModel();
+    void intiializeEvent(const QString &eventId);
+    void intiializeEvent(const Quotient::RoomEvent *event);
 
     QList<MessageComponent> m_components;
     void resetModel();