Add tests for uncompressed dex for `android_app_import`.

Some of the test cases for privileged apps currently produce incorrect
results (e.g. with DONT_UNCOMPRESS_PRIV_APPS_DEXS := true); they are
marked with TODO and will be fixed in a follow-up CL.

Bug: 194504107
Test: m nothing
Change-Id: Ic0cd24113a27850a967afa0b3deb4a6324f95347