'Create a table with the specified column families.  The name
field for each ColumnDescriptor must be set and must end in a
colon (:). All other fields are optional and will get default
values if not explicitly specified.
@throws IllegalArgument if an input parameter is invalid
@throws AlreadyExists if the table name already exists
Parameters:
- tableName: name of table to create
- columnFamilies: list of column family descriptors'

def createTable(self, tableName, columnFamilies):

    pass
