[SSMG64]

I finally found what was mismatching and fixed Layer::getDefaultLayers, yay!

I changed LevelData::getBiomeScale() to return an unsigned char instead of a bool to match BiomeSource::LayerOverrideSettings::GetBiomeScale(), and that removed an extra instruction. I also changed BiomeInitLayer to take biome instead of layer and cleaned up how useBiomeScale is copied into an int for ZoomLayer::zoom to fix extension and register reuse issues, and i also removed the NON_MATCHING comment this time.

tools/check still says OK and it updated the function in the CSV to Matching

That took me so long to figure out ._.
Also tell me if i need to change anything, in case i might have forgot again

@GRAnimated