[1/2] Add support for Peek app

Disable built in peek when Peek app is installed. Enable it again on app's unistall.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
NotificationHelper: We shouldn't use logical here, one case is enough no matter the order

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
NotificationHelper: Create broadcast receiver for Peek app

Store showing state.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
NotificationHelper: Define Peek app broadcast intents

Continue this https://gerrit.paranoidandroid.co/#/c/4369/

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Revert "[1/2] Add support for Peek app"

This reverts commit 0c5a3e49b1b170086e521a9e13cd3758bf1d3bd3.