Add buildings generation white list dimensions

[alecss131]

this can be tied to the generation of ores with a couple of lines of code, but I don’t want to forked and compile the mod from source. add another option in the settings is not so difficult

[infiniteblock]

are you interested in doing the code and i will add it?

[infiniteblock]

Will have a structure gen blacklist for dimension's in 0.8.5