Add PermissionServicePerfTests

Add PermissionServicePerfTests. Added the test testInstallPackages() to
test the performacne of onPackageInstalled() calls when installing 30
packages. Use ManualBenchmark to fetch the trace and add it to the
benchmark duration.

Test: PermissionServicePerfTests
Change-Id: I5f6859ff57af2757ad2a7b9b0a9d89da30247973