VIMS: Decouple recognizer from interactor in initForUser().

When initializing settings for a user, set the recognizer independently
of the interactor.
This will allow the default recognizer to be provided by a different
package from the interactor.
There should be no change to how the interactor is set.

Bug: 167597525
Test: manual
Test: atest CtsVoiceInteractionTestCases
Change-Id: I2da8f72c768b27df21534e265a3d1fb6919c7140