This was a substantial revision for intial release

In this commit my summary is as follows:

 - Add File Menu with all working Items
   - Add stock
   - Clear stock
   - Clear all
   - Calculate
   - Exit
   - About

 - Buttons work and function as should
   - Add button
     - Correctly adds stocks and resizes the frame.
   - Clear button
     - Correctly removes stocks and resizes the frame.
   - Calculate button
     - Add error handling and proper equation for stocks.

 - Create About page