win32 gpoll: overcome the 64 handles limit
win32 gpoll: overcome the 64 handles limit

This is a new polling method allowing to poll more than 64 handles
based on the glib one.
When we reach the limit of 64 we create a thread and we poll
on that thread for a batch of handles this way we overcome the limit.

https://gitlab.gnome.org/GNOME/glib/issues/1071

endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib