ContactsContract: Adding joined columns to the CommonDataKind class definitions.

The rationale is this. Since all these joined columns are currently on
different classes, we routinely see code like this:

private static final String[] PROJECTION_PHONE = {
   Data._ID, // 0
   Data.CONTACT_ID, // 1
   Phone.TYPE, // 2
   Phone.NUMBER, // 3
   Phone.LABEL, // 4
   Data.DISPLAY_NAME, // 5
};

After this change, the above declaration changes to:

private static final String[] PROJECTION_PHONE = {
   Phone._ID, // 0
   Phone.CONTACT_ID, // 1
   Phone.TYPE, // 2
   Phone.NUMBER, // 3
   Phone.LABEL, // 4
   Phone.DISPLAY_NAME, // 5
};

Change-Id: I2e84bca3277aeef06eec20cee8c2119ef3b90a9f