Bind to DefaultContainerService early for AIA

This change attempts to bind to the default system service on
PackageInstallSession creation instead of waiting until the session is
committed. This potentially saves up to 200ms off of instant app launch
latency.

Change-Id: I6a27c6db3094ddbe2f633f118e4b30182f07647a
Fixes: 72661783
Test: manual - install succeeds and service connection happens on session open