Add additional system_server benchmarks

This CL adds benchmarks for the following PackageManager APIs:
* getInstalledApplications
* getInstalledPackages
* getPackageInfo
* getApplicationInfo
* getResourcesForApplication
* getActivityInfo

Bug: 140743821
Change-Id: I467e4264a5e8f5c1c34194c7ad4b4c415387da9e