This file is for the HangingCrystalGenerator. This generator generates hanging clusters 
of blocks, similar to glowstone.



Constructor:
    Arguments:
        ItemBlockData, int, int
    Argument Usage:
        block to generate, clusters per chunk, cluster expansion attempts
    Notes:
        This constructs a HangingCrystalGenerator.

setHeight:
    Arguments:
        int, int
    Usage:
        min height, max height
    Notes:
        Sets the min and max heights this generator can generate at. Default is 4 and 250.

addRequiredBlock:
    Arguments:
        ItemBlockData
    Usage:
        required block
    Notes:
        Adds a block the generator is allowed to start generating a cluster under. By default can generate under any block.