Added division in forth interpreter

Added test for division in cucumber as well
Added test for multiplication addition
Dispatch functions for conditions and comments
Define Forth conditions
Implement missing integer comparison operations
Added test for empty stack and fixed typos in cucumber
Typo in stack is empty error message
Added EXIT fucntion in interpreter
Implemented VERSION func, and added test in cucumber
Revert "Added EXIT fucntion in interpreter"

This reverts commit 53ea1a2483b0342d459acf61ff65f848060b1fe9.
typo in VERSION func*
Fixed EXIT command