preparation for allowing to use wxTimer in wxBase (heavily modified patch 1113088):

1. Changed wxTimer to use wxTimerImpl
2. Added Unix-specific generic timer implementation
3. Added wxAppTraits::CreateTimerImpl()


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45544 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/baseunix.cpp

@@ -32,6 +32,7 @@
 
 #include "wx/apptrait.h"
 #include "wx/unix/execute.h"
+#include "wx/unix/private/timer.h"
 
 // for waitpid()
 #include <sys/types.h>
@@ -81,3 +82,10 @@ wxConsoleAppTraits::WaitForChild(wxExecuteData& execData)
     return exitcode;
 }
 
+wxTimerImpl*
+wxConsoleAppTraits::CreateTimerImpl(wxTimer *timer)
+{
+    // this doesn't work yet as there is no main loop in console applications
+    // (but it will be added later)
+    return new wxUnixTimerImpl(timer);
+}