[ticket/12334] Add PROFILE_FIELD_VALUEID template var

PHPBB3-12334
[ticket/12334] Added field_novalue fall-back as requested

PHPBB3-12334
Merge pull request #2218 from PayBas/ticket/12334

[ticket/12334] Add PROFILE_FIELD_VALUEID template var

* PayBas/ticket/12334:
  [ticket/12334] Added field_novalue fall-back as requested
  [ticket/12334] Add PROFILE_FIELD_VALUEID template var