Add mg_set_thread_name for setting the thread name for Visual Studio debugging purposes.
Add mg_set_thread_name for setting the thread name for Visual Studio debugging purposes.

GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver