Save commands created with "make:cmd" to be added in the commands config file.

[grahamsutton]

Dependency on Issue #7

---

After the creation of the configurations file, we will need to update the make:cmd call to add newly created commands to the config file we have setup.

---

Acceptance Criteria

• The class name of the new command should be added to the commands configuration file at the very end of the process of creating the command.