Bug 884050 - [SMS][MMS] Regression. New renderContact rules missed untested cases - r=gnarf

https://bugzilla.mozilla.org/show_bug.cgi?id=884050

- Only render a contact's tel value entry for the _specified_ input value when not rendering a suggestion. If the tel record value _doesn't_ match, then continue.
- If rendering for contact search result suggestions, don't render contact tel records for values that are already selected as recipients. This comparison should be safe, as the value in this.recipients.numbers comes from the same source that current.value comes from.

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
(cherry picked from commit 3191a6fc9a6b295d0b401da23e71bbcc4136f77b)

Closes gh-10448
(cherry picked from commit 2a27da68945c1353d92be68ba8bf709af2c2545a)