Ref T384, addjusted text message component to be used with overlay text messages

* Tab enum in own file
* Funtions to change tab and hide UI elements

src/blackgui/components/textmessagecomponenttab.h

@@ -0,0 +1,29 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the toplevel
+ * directory of this distribution and at http://www.swiftproject.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_COMPONENTS_TEXTMESSAGECOMPONENT_TAB_H
+#define BLACKGUI_COMPONENTS_TEXTMESSAGECOMPONENT_TAB_H
+
+namespace BlackGui
+{
+    namespace Components
+    {
+        //! Tabs
+        enum TextMessageTab
+        {
+            TextMessagesAll,
+            TextMessagesUnicom,
+            TextMessagesCom1,
+            TextMessagesCom2
+        };
+    } // ns
+} // ns
+#endif // guard