Add new API function createAndManageUser

This is a reduced version of the (deprecated) function
createAndInitializeUser, that allows the device owner to create a
new user and pass a bundle with information for initialization. The
new version of the function has the same functionality, but the
profile owner of the new user is always the device owner.

A flag can be specified to skip the setup wizard for the new user.

The new user is not started in the background, as opposed to how
createAndInitializeUser did it. Instead, the bundle with
initialization information is stored and will be broadcast when the
user is started for the first time.

Bug: 25288732, 25860170
Change-Id: I4e1aea6d2b7821b412c131e88454dff5934192aa