this program needs to show a menu giving the user the choice for input of three currencies and a quit option.
## Deliverables
the code needs to convert from any of the three currencies to any of the three currencies. The program needs to take currency valuations from a file. The program needs to print out in table form all input received from the user. Finally, the program needs to be able to write the information to a file.
## Deadline information
this program needs to be done by Wednesday, August 15th.