Show package icon/label for resolved package-targeted implicit intents

If we're going to show metadata about a resolved implicit intent that
is targeted to a single package with multiple potential targets,
populate the ResolveInfo with the label and icon of the target
package's ApplicationInfo and set resolvePackageName. This helps use
cases such as EXTRA_INITIAL_INTENTS in ChooserActivity, where
sometimes apps set target packages but not components.

Bug 28739056

Change-Id: I8070d341fccc139463c5ac8d66db45fce02252e5