Emoji: Implement emoji-reactions

resources/icons/add_reaction.svg

resources/icons/copy.svg

resources/icons/delete.svg

resources/icons/edit.svg

resources/icons/reply.svg

resources/icons/save_file.svg

src/app/commoncomponents/ChatviewMessageOptions.qml

src/app/commoncomponents/EmojiReactionPopup.qml

src/app/commoncomponents/EmojiReactions.qml

src/app/commoncomponents/MessageOptionButton.qml

src/app/commoncomponents/SBSMessageBase.qml

src/app/commoncomponents/TextMessageDelegate.qml

src/app/constant/JamiStrings.qml

src/app/constant/JamiTheme.qml

src/app/mainview/components/ChatView.qml

src/app/mainview/components/MessageListView.qml

src/app/messagesadapter.cpp

src/app/messagesadapter.h

src/libclient/api/conversationmodel.h

src/libclient/api/interaction.h