Add group types to bp_get_groups_class()

[hnla]

As pointed out by Offerins currently we output the member types as tokens for the members dir loop li elements in bp_get_member_class() but haven't matched this for the groups loop.

Patch to follow will correct this and mirror behaviour as existing for members.

[hnla]

Add group types to group loop class function

[hnla]

In 11209:

Add group types to bp_get_group_class()

Commit adds loops group types for the groups loop li elements class, this mirrors the behaviour of members types in bp_get_member_class()

Fixes #7303 Props offereins, hnla