This file is for the BiomeBlockReplacementGenerator. This generator handles top/filler 
block replacements for biomes. Not quite the same as the overworld, but similar.



Constructor:
    Notes:
        This constructs a BiomeBlockReplacementGenerator with a sea height of 0.

Constructor:
    Arguments:
        int
    Argument Usage:
        height of the sea in the dimension
    Notes:
        This constructs a BiomeBlockReplacementGenerator. Sea height is required to properly handle replacement above/below the sea.