Use lambdas for dispatcher, code cleanup, test updates (#958)

* Using lambdas instead of member function pointers simplifies the command dispatching and reduces the code volume

* Removed duplicate error handling

* Fix for issue #956

* Unit test updates

* Resolved SonarQube issues

cpp/controllers/abstract_controller.cpp

@@ -7,6 +7,7 @@
 //
 //---------------------------------------------------------------------------
 
+#include "log.h"
 #include "rascsi_exceptions.h"
 #include "devices/primary_device.h"
 #include "abstract_controller.h"