Enable fetching user data for a title by its titleId instead of npCommunicationId

Housekeeping job for pending requests.
Requested by [rhenriquez28](https://github.com/rhenriquez28) on Mar 1st, 2022, [here](https://github.com/achievements-app/psn-api/issues/34#issuecomment-1055823951).

Reference: [Method on PHP library](https://github.com/Tustin/psn-php/blob/52a0959090f5b2cddc00b54ab3039fcc0e3aa7a6/src/Model/User.php#L81), [Documentation reference](https://andshrew.github.io/PlayStation-Trophies/#/APIv2?id=trophy-title-summary-for-specific-title-id).

Limitations (known so far): The v1 API endpoint cannot grab PS5 games (PPSA), but can get PS4 games (CUSA). Maybe (untested) it can get the PSVita and PS3 games as well?