SenseApis: Add threading model info to initialization info

We provide access to a thread whose event queue the sense API
libs can use for device-independent event management.

senseApis/xcbWindow/xcbWindow.cpp

@@ -29,6 +29,7 @@ static XcbXorgDllState xcbXorg;
 
 // Salmanoff hooks, obtained from SMO_GET_SENSE_API_DESC_FN_NAME().
 static const smo::sense_api::SalmanoffCallbacks* smoHooksPtr = nullptr;
+static smo::sense_api::SmoThreadingModelDesc smoThreadingModelDesc;
 
 // Attached windows.
 static std::vector<std::unique_ptr<xcb_window::AttachedWindow>>
@@ -348,8 +349,10 @@ extern "C" smo::sense_api::SMO_GET_SENSE_API_DESC_FN_TYPEDEF
     SMO_GET_SENSE_API_DESC_FN_NAME;
 
 const smo::sense_api::SenseApiDesc& SMO_GET_SENSE_API_DESC_FN_NAME(
-    const smo::sense_api::SalmanoffCallbacks& callbacks)
+    const smo::sense_api::SalmanoffCallbacks& callbacks,
+    const smo::sense_api::SmoThreadingModelDesc& threadingModel)
 {
     smoHooksPtr = &callbacks;
+    smoThreadingModelDesc = threadingModel;
     return xcbWindowApiDesc;
 }