Code Cleanup

I had already implemented a way to get the value of a variable as a
string within the Var class.
Code Cleanup
Added error message configuration
Configure error messages through the Error class

Might move Globals::Errors into Error class in the future.
Reordered includes
Code cleanup

When a program fails, return a -9 (in the future this will be used).
Also added an entry point for error message configuration.
CodeBlocks Project Files