Trinomial_Option_Pricing_Calculator_App

1. Workbook defines a trinomial function which can be used to evaluate Vanilla and Single Barrier Option
2. Support both American & European Style
3. Supported barrier pricing:
   1. UP-OUT
   2. UP-IN
   3. DOWN-OUT
   4. DOWN-IN
4. Note:Does not yet support dividend payments and rebates. Will be incorporated in future versions