Generate Database module

generate_database.create_tables_for_sqdt(...)	Create the database tables for a given species using SQDT in the current directory.
generate_database.create_tables_for_mqdt(...)	Create the database tables for a given species using MQDT in the current directory.
generate_database.create_tables_for_misc(f_max)	Create misc databases, i.e. the wigner table in the current directory.