conversation: show display indications for groups

...app/src/main/java/cx/ring/adapters/ConversationAdapter.kt

...p/src/main/java/cx/ring/fragments/ConversationFragment.kt

...ain/java/cx/ring/tv/conversation/TvConversationAdapter.kt

...in/java/cx/ring/tv/conversation/TvConversationFragment.kt

...c/main/java/cx/ring/viewholders/ConversationViewHolder.kt

...-android/app/src/main/java/cx/ring/views/AvatarFactory.kt

...roid/app/src/main/java/cx/ring/views/MessageStatusView.kt

ring-android/app/src/main/res/layout/item_conv_audio_me.xml

ring-android/app/src/main/res/layout/item_conv_file_me.xml

ring-android/app/src/main/res/layout/item_conv_image_me.xml

ring-android/app/src/main/res/layout/item_conv_msg_me.xml

...android/app/src/main/res/layout/item_conv_video_me_tv.xml

ring-android/app/src/main/res/values/dimens.xml

...ain/kotlin/net/jami/conversation/ConversationPresenter.kt

...src/main/kotlin/net/jami/conversation/ConversationView.kt

...jamiclient/src/main/kotlin/net/jami/model/Conversation.kt

...bjamiclient/src/main/kotlin/net/jami/model/Interaction.kt

...lient/src/main/kotlin/net/jami/services/AccountService.kt

...lient/src/main/kotlin/net/jami/services/ContactService.kt

...t/src/main/kotlin/net/jami/services/ConversationFacade.kt