added basic browser extension stuff

src/singletons/nativemessagingmanager.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <QThread>
+
+namespace chatterino {
+namespace singletons {
+
+class NativeMessagingManager
+{
+    NativeMessagingManager();
+
+public:
+    static NativeMessagingManager &getInstance();
+
+    class ReceiverThread : public QThread
+    {
+    public:
+        void run() override;
+    };
+
+    void registerHost();
+    void openGuiMessageQueue();
+    void sendToGuiProcess(const QByteArray &array);
+};
+
+}  // namespace singletons
+}  // namespace chatterino