Extract SmoCallbacks and SmoThreadingModelDesc into smoHooks.h.

Move shared hook and threading-model types out of senseApiDesc.h so both
stimbuff and comparator libraries can include them without pulling in API descs.

Co-authored-by: Cursor <cursoragent@cursor.com>

smocore/stimBuffApis/stimBuffApiManager.cpp

@@ -9,6 +9,7 @@
 #include <body/bodyThread.h>
 #include <componentThread.h>
 #include <opts.h>
+#include <user/smoHooks.h>
 #include <user/senseApiDesc.h>
 #include <mind.h>
 #include <deviceManager/deviceManager.h>