DO NOT MERGE Added Tapjacking test for Device admin

Added a test to verify that device admin add button does not accept
touches when another window is obscuring the device admin details window

Test: Cts Verifier -> Device Administration -> Device Admin Tapjacking
Test

Bug: 35056974
Change-Id: If9ec1a5adb7b30f5bad0adf5a0fdb3a8ff40a35b
Merged-In: I741779fe70be69e2a49227c2dcd2d743a09330aa
(cherry picked from commit 713602aecbd95efc7364861efb154a29cfa57804)
10 files changed