Add client events: AddedToChannelAsMember and RemovedFromChannelAsMember#146

sierpinskid merged 1 commit intodevelopGetStream/stream-chat-unity:developfrom

feature/add-user-added-removed-to-from-channel-eventsGetStream/stream-chat-unity:feature/add-user-added-removed-to-from-channel-eventsCopy head branch name to clipboard