createModule is a function for creating a module object
based on the item pool, attribute, and constraints.
createModule(constraints, item_pool, item_attrib, passage_attrib)constraints data. A data.frame or a csv file name to be used in loadConstraints.
item pool data. A data.frame or a csv file name to be used in loadItemPool.
item attribute data. A data.frame or a csv file name to be used in loadItemAttrib.
passage attribute data. A data.frame or a csv file name to be used in loadStAttrib.
a module object.