Working on improving modularity, allowing the user more control over which products to modify and how.

- completed getUserInputs() function, which now lets the user determine whether to modify
  single- and/or multi-pack products and how
- completed getTpeProducts(), getTiscoProducts(), and applyTiscoDiscounts() functions, which only needed some cleaning up
- renamed findSpecialCases() to categorizeProducts(), and working to change functionality

Next Step: complete categorizeProducts()