Settings: add app moving menu options

Settings > Apps > Menu

Thanx to chenxiaolong.

Change-Id: I0e4c3ffedf077d4c8db9dad1b2c6df004e0c580d
Signed-off-by: Shubhang Rathore <shubhang92@gmail.com>
Enable moving applications to an external volume

* Always enable moving applications to an external volume if it is
  available and mounted

Change-Id: Ia683eda30338dfad0d7e78087d42d7e512fa83e4

Signed-off-by: Shubhang Rathore <shubhang92@gmail.com>