Feature request: Navmenu scene blacklisting

[Sairion350]

Issue: There are times when we want to block off some animations from manual mode. Like, a vampire mod might want to stop you from selecting vampire animations, or filtering out F/F anims during straight scenes.

OStim addons can handle generating these blacklists, just need an OSA feature to receive and then process them.

• a function in either diasa or omajor takes a csv list of scene ids
• The list is merged with a larger one in memory that is kept until the end of the OSA scene so multiple mods can send up blacklists to it and they all get used
• All scenes that are a part of this blacklist are greyed out in the navtab and maybe have a different halo
• Also any transitions that point at one of these scenes is greyed out the same
• The first value in the CSV sent to OSA will just be a "error message" to display in place of the normal scene description. Like a vampire mod would send up "Not a vampire" and instead of "Bite them" appearing when you mouse over the icon, it instead says "Not a vampire" in red letters

After the creation of this feature I can make an easy to use ostim function for addon devs to send in blacklists quickly.

[Sairion350]

Full discussion on this: https://discord.com/channels/879525790415462481/881146912873517056/892563079659946034