Add Tests for Create Command

[basokant]

• Create file structure for tests in our app.
• Add unit test(s) for the create cobra command. See https://nayaktapan37.medium.com/testing-cobra-commands-in-golang-ca1fe4ad6657 for an example.
• Add go test to GitHub Actions suite.

[basokant]

What are opinions on adding testify for use in our tests? I personally prefer using their assertion API over using if statements and manual test error messages. @Melkeydev 👀

[Melkeydev]

Yeah I like testify @basokant