[veridex] Detect reflection uses.

Add HiddenApiFinder to walk over the code item of
app dex files, and find static linking uses and potential
reflection uses.

bug: 64382372
Test: m

(cherry picked from commit 11ed0275c48ad9a6301d914d3344a27467fcaf0c)

Change-Id: Icfea54198f12e3db2dc9b1d16bb6f16103f6a932
9 files changed