[view_compiler] Add end-to-end DexBuilder tests

These tests verify that code produced by DexBuilder can be loaded and run on
device. It works by introducing a new tool, dex_testcase_generator, which writes
out a couple of DEX files with test cases. This tool runs as a build step. The
generated DEX are then copied over to the device where they are loaded and run
the on-device DexBuilderTest.

Bug: 111895153

Change-Id: I06f5edd0e3e2f4e9ec2d14a0db7d22b75b424119