Added ReadUint(string prompt, double min)
Added SplitIntoDenominations(int value, uint[] denominations)
Added ShowMessage(string message, [bool isError = false])
Changed Console.WriteLine() to ShowMessage() where applicable.
*Canged some INTs to UINTs in SplitIntoDenominations
+Added PrintReceipt(double subtotal, double roundingOffAmount, uint total, uint cash, uint change, uint[] notes, uint[] denominations)
*Changed PrintReceipt() to accept string[] denominations instead of uint[] denominations.
+Added listing of change in PrintReceipt()
~Fixed so that ReadPositiveDouble() can read decimals.
*Changed colorscheme in ShowMessage()

+Made The program loop and clear on new calculation.