Create a new GTS test for logcat dialog content validation

Create a test app to trigger the logcat dialog (per-use prompt). The
GTS test uses UiAutomator to fetch the title and body, then compares
against reference strings in SystemUI resources.

Bug: 244173032
Test: atest GtsReadLogStringTest
Change-Id: I1ca1777dc2640dbab7b089b0795b44e3d1b3d6ee
2 files changed