A LOT More Functionality (Read Description)

Some files were missing so these are the notes for the commit before
this one

We are approaching release version 1!
- Added functionality to multiply, subtract, add, divide
- Added support for decimals
- Added support for unlimited digit numbers

Error Handling
- Pressing equals before a complete operation returns the message
"Error"
- Pressing decimal before any other number automatically adds a "0"
before the decimal

Other
-Fixed some comment vandalism