vitgrams

@DenTray I have done research on this issue. We can rewrite the code of this [library](https://github.com/Sayi/swagger-diff) in php to get a difference between the documentation versions for Swagger (v1, v2)....

@DenTray Generated documentation diff for two API versions. The results have been attached. Could you please take a look? [swagger-diff.zip](https://github.com/RonasIT/laravel-swagger/files/11075528/swagger-diff.zip)

@DenTray Branch `66_implement_swagger_diff_module` with related changes has been pushed to remote as discussed.