Enterprise quick contact 1/2

Now openQuickContact goes thorough DPM.  When a lookup URI is build with
a lookup key returned by the enterprise lookup APIs for a corp contact, the
lookup key will have a special prefix.  In that case we go through DPM
and have it launch QC on the managed profile, if the policy allows.

For now we use the same DPM policy as enterprise-caller-id to disable this.

Design doc: go/cp2-mnc-enterprise-dd

Bug 19546108

Change-Id: I831a8190ae902ae3b1248cce6df02e3a48f602d2