Generalize select account dialog for usage anywhere in dialer (1/2)

Currently the select account dialog is specific to InCallUI, but there
are other places in the dialer app that will need the user to select an
account (e.g. MMI pin) so we want to reuse this dialog.
+ Move dialog to ContactsCommon
+ Add a listener to the SelectPhoneAccountDialogFragment class

Bug: 17917937

Change-Id: I872dba36f0f53737398861ff5376cc07f0e11c7b