Rework ParceledListSlice to be much easier to use.

Take advantage of this to return better information about
packages filtered by permissions -- include the permissions
they have in the requested array.

Also fix issue #8026793 (Contact picture shows default pic
while searching for a contact in qsb) by using the base
package name of the Context when reporting the app name
of an operation.  Otherwise you could make a resource-only
context for another application and do calls through that
and get reported as the wrong app.

Change-Id: I5e0488bf773acea5a3d22f245641828e1a106fb8