[ticket/12334] Add PROFILE_FIELD_VALUE_RAW template var

Completed original PR #2218 by @PayBas, add unit tests within the new CPF unit tests

[PHPBB3-12334](https://tracker.phpbb.com/browse/PHPBB3-12334)
Nope, according to [this line](https://github.com/phpbb/phpbb/blob/develop-ascraeus/phpBB/phpbb/profilefields/lang_helper.php#L85) it should be from 1 to number of options