[New Feature] Restoring Veinholes

[DarkInsignia]

Currently I do not believe that veinholes work properly in Red alert 2/YR. Namely it's growth etc.
I believe veinholes could be used in some settings to provide an interesting change to mix up the gameplay and a good variety of gamemodes.

I've not thought of any additional tags to expand upon the old ones, but seeing the growth etc work in the first place would already be a great start.

[gangster-ppm]

Vk's NPatch Autumn Edition does have it partially working iirc