Implemented Uniquie exit codes for the following exits:
| Exit code | Reason | Solution |
|---|---|---|
| 10 | Call of 'archspec cpu' failed | Please install archspec, for example via 'pipx install archspec' |
| 20 | Requested package set is not available | Use 'available' command to see list of available package_sets |
| 30 | Current directory is already initialised | Check if you are in the right directory |
| 40 | Current directory is not initialised | Check if you are in the right directory, if so use 'init' command to initialise |
Skipped the changes to 1) remove command as its not yet implemented 2) sanity check for mpsd_release as its removed in one of the MR.
Closes #29 (closed)