[Windows] Use gui_scripts for web and daemon entry points

Hide the console cmd popup when using deluge-web.exe ordeluged.exe on
Windows.

By using gui_scripts it will disable stdin and stdout for these
executable but there are `-debug` versions available if that is
required.

Ref: https://packaging.python.org/en/latest/specifications/entry-points/#use-for-scripts

setup.py

@@ -481,6 +481,10 @@ if not windows_check() and not osx_check():
 
 _entry_points['console_scripts'] = [
     'deluge-console = deluge.ui.console:start',
+]
+# On Windows use gui_scripts to hide cmd popup
+script_type = 'gui_scripts' if windows_check() else 'console_scripts'
+_entry_points[script_type] = [
     'deluge-web = deluge.ui.web:start',
     'deluged = deluge.core.daemon_entry:start_daemon',
 ]