Layout selection and show/hide frame

Added ability to show/hide object frames via a toggle button in the
edit toolbar. All objects have frames by default except for ‘hyperlinks’.
Also, implemented object selection in the layout and added tests for new features.

Fixes #1658.

platform/commonUI/browse/res/templates/browse/object-header.html

@@ -28,8 +28,4 @@
         key="'menu-arrow'"
         mct-object='domainObject'
         class="flex-elem context-available-w"></mct-representation>
-</span>
-<a class="s-button icon-expand t-btn-view-large"
-   title="View large"
-   mct-trigger-modal>
-</a>
+</span>