bluetooth: Add device details page with basic properties to internals page.
Adds DeviceDetailsPage to internals page so users can view all the properties
of the DeviceInfo object. No display of service properties is included in this
patch.
Splits action link in Devices table into two separate links: "Inspect"
and "Forget".
Adds functions to add and remove items from the sidebar.
Adds test infrastructure for Device proxy-based tests.
Adds test for DeviceDetailsPage.
Adds unregister function to PageManager.
GIFs: https://goo.gl/photos/zLiv86gyYmQhRn9w8
BUG=651282,663470
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation
Review-Url: https://codereview.chromium.org/2576603002
Cr-Commit-Position: refs/heads/master@{#443465}
12 files changed
