[Feature Request] Add ability to limit number of specific room spawns

[Xacorman]

Per title, the ability to limit so that only X number of treasure rooms spawn would be very useful. The use case in my head is multiple room types but for example I don't think it would make much sense to have multiple throne rooms and while I could manually place them it'd be much more useful to have them be randomly placed.

Thanks!

[Xacorman]

I'm dumb and didn't see the min and max room values. Closing issue.