add/create/remove/get sidechats/whispers/members/and groups

AddSideChatMembersTask
RemoveSideChatMembersTask
GetSideChatMembersTask
CreateSideChatTask

CreateWhisperTask
AddWhisperMembersTask
GetWhisperMembersTask
RemoveWhisperMembersTask

GetGroupMembersTask
GetMultipleGroupsTask
GetSpecificGroupTask