Changes to main.go:
```
- make needed changes to remove the flag package
- refactor functions to use the preferred command syntax
```
changes to logger.go:
```
- make logger be quiet and stop outputting to STDOUT now that we are in user testing
```
changes to install.go:
```
- setup some extra logic in InstallPAckageSnap to install snaps in "classic confinement mode" if the user wishes
```
changes to updater_utils.go:
```
- create the file to contain some helper methods (namely one to update packages by name from a more central interface)
```
changes to cli_utils.go:
```
- create the file to contain some helper methods for the CLI (namely just a method to handle errors in the update process)
```
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