Conversation View: change UI

Split Conversation view in three section:
1 - peer info and buttons to perform actions
2 - conversation
3 - send message panel

Change-Id: I1732c3ba093ff7b2d65004ddc6d43ef54539403a
Reviewed-by: Anthony LĂ©onard <anthony.leonard@savoirfairelinux.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3595114..3f75df2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -207,6 +207,10 @@
    src/views/RoundedTextField.mm
    src/views/MessageBubbleView.h
    src/views/MessageBubbleView.mm
+   src/views/SendMessageCell.h
+   src/views/SendMessageCell.mm
+   src/views/SendMessagePanel.h
+   src/views/SendMessagePanel.mm
 )
 
 SET(ringclient_OTHERS