CMake: Emit necessary signal in server-mode

Change-Id: I35066deebbd0b7330cbf9864442073966af9203f
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/cmakeprojectmanager/servermodereader.cpp

@@ -140,6 +140,8 @@ void ServerModeReader::resetData()
 
 void ServerModeReader::parse(bool force)
 {
+    emit configurationStarted();
+
     QTC_ASSERT(m_cmakeServer, return);
     QVariantMap extra;
     if (force) {