[apps] Add a code app

Change-Id: Icc72c378a6434b5d3b0af74f23e31ea7514882b8

apps/code/app.cpp

@@ -0,0 +1,30 @@
+#include "app.h"
+#include "../apps_container.h"
+#include <assert.h>
+
+namespace Code {
+
+I18n::Message App::Descriptor::name() {
+  return I18n::Message::Matrices;
+}
+
+I18n::Message App::Descriptor::upperName() {
+  return I18n::Message::Matrices;
+}
+
+App * App::Snapshot::unpack(Container * container) {
+  return new App(container, this);
+}
+
+App::Descriptor * App::Snapshot::descriptor() {
+  static Descriptor descriptor;
+  return &descriptor;
+}
+
+App::App(Container * container, Snapshot * snapshot) :
+  ::App(container, snapshot, &m_editorController),
+  m_editorController(this)
+{
+}
+
+}