Add list of PS4 fighting games to FAQ

[StdVectorBool]

Pulled from various Reddit threads.

[StdVectorBool]

Closing. Too onerous for community to maintain.

[henrebotha]

I think it would be better not to list games that are not compatible, because that gets us into "maintain a database of all PS4 fighting games" territory. We could restrict it only to a list of games we believe to work, and add a very clear caveat that we could be wrong, it might have changed since we checked, etc.

[FeralAI]

I believe there is value in having both confirmed lists (working/non-working) without users needing to search the internet for various threads to confirm. The games we're referring to here are a generation out and there won't be many new entries to capture once a stable list is built. It does not have to be a live document and can receieve sporadic updates and PRs.

I've recently discovered several of the M2 ShotTriggers shmup releases on PS4 support legacy input and would be great to capture.

If it's agreed to be out of scope for this repo, I propose considering a stanalone repo with just the compatibility lists.

[henrebotha]

I agree with sticking this in a standalone project.