(PUP-2628) Add members to groups instead of full list for Windows

Previously, if you wanted to use the group resource you needed to specify the
entire list of members as the windows provider ignored the auth_membership
setting and was always the authoritative list. This ensures that the windows
provider respects the auth_membership setting.
Merge pull request #3324 from ferventcoder/ticket/master/PUP-2628-group-windows-inclusive

(PUP-2628) Add members to groups instead of full list for Windows