Timeline : start handling some state events display

app/src/main/res/layout/item_timeline_event_notice.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <ImageView
+        android:id="@+id/itemNoticeAvatarView"
+        android:layout_width="24dp"
+        android:layout_height="24dp"
+        android:layout_marginStart="64dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginBottom="8dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/itemNoticeTextView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginEnd="8dp"
+        android:textColor="@color/slate_grey"
+        android:textSize="14sp"
+        android:textStyle="italic"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/itemNoticeAvatarView"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="Mon item" />
+
+</android.support.constraint.ConstraintLayout>