Attempt to add new spells and skills.

I'm telling you - in the simple version, there's a gray spell, and after that, it's useless.

NCF doesn't even have this, probably because the byte is incorrect.

Thank you, I understand. I wanted to try making it myself. If it's not too much trouble, could you make a patch with spells up to SPELL_CUSTOM_ABILITY_10 inclusive? Maybe I'm asking too much, but I hope...)

We'll need to systematize the information and put it in the header.