Validate origin in configuration matches expected pattern

[preslavmihaylov]

Validate that the origin section in the configuration matches the expected pattern, given the issue tracker type.

For example, if the issue tracker is GITHUB, the expected pattern is github.com/{namespace}/{project}.

Throw an execution error with a user-friendly message when that is not the case

[preslavmihaylov]

Closed with #47