Initial Commit: Part 1 (Doesn't have sequence_command implemented)
Added sequence support (a;b)
Also added two new test cases
Added some more test cases
Set up structure for execute command and implemented simple and and command
Added test cases for testing execution of the shell
Adding more test cases
Had And and Or command update the status of the And/Or command and added a few more unit tests
Added subshell support
Implemented sequence commands
Fixed a bug with comments and implemented file input redirection for execution
Implemented input/output redirections
Implemented Pipe Command
Fixed return of exit status and placed in some checks for failed system calls
Added more checks for failures of system calls
Time Travel Initial Commit
Setup Child Process For Time Travel
Setup general structure for time travel parent
Merged with execute branch for time travel
Fixed bug with subshells output and command parameters now taken in as input
Final Commit for Read Command