RemoteLinux: Base AbstractLinuxRunSupport on PE::ToolSupport

This continues the quest started with eb0b0f944.

This also moves the AnalyzerRunControl::starting signal to the
base, similar to the already present started and finished
signals. Moving emission of the signal to the base is left
to a follow-up patch to keep this here small.

Change-Id: I12e04823df22e7667a4d0a9ee7412153180c60cc
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -989,4 +989,9 @@ RunControl *ToolRunner::runControl() const
     return m_runControl;
 }
 
+void ToolRunner::appendMessage(const QString &msg, OutputFormat format)
+{
+    m_runControl->appendMessage(msg, format);
+}
+
 } // namespace ProjectExplorer