Add Edge role creation script to module

[cnovak]

Currently the module's documentation installation steps say to download a gist from my GitHub repo, which is weird. This should be instead a script in the module.

[mxr576]

Well, it definitely seems odd that a customer has to pull down a script from your GH repo and not from an official Apigee repo, so one obvious solution for this problem is to move the shell script to an official Apigee repo. What this script is needed for is only a one-time configuration.

IIRC I haven't seen any Drupal module yet that would ship a shell script as part of the module. Although it seems Drupal core's .htaccess could handle it, if you would like to move it to the module I would suggest to rewrite the shell script to a Drush/Drupal Console command.
Your shell script obviously only runs on Unix based OS-es and Windows 10 with WSL enabled and it requires curl, but it does not validate whether it is installed or not.
The Drush/Drupal console command could run on all OS-es and because ext-curl is a requirement of Drupal (also Guzzle 6 is available) you would not need to worry about dependency issues and you could simplify your script a lot.

[cnovak]

Good input @mxr576 , was thinking that it would be good to move to module and later move into Drush/Drupal console, but the OS dependency would be good to solve ASAP.

[mxr576]

Not sure how else you could solve the OS dependency than the suggested solution. Probably you could to create a CMD or Powershell version from your script, but if you invest time to that, why do not you rather invest time to the cross-platform Drush/Drupal console command instead?
If you do not have the capacity to write the hybrid Drush/Drupal console command just let me and @arunz6161 know and we'll figure something out.