feat: custom sms provider using config

[AzikDeveloper]

Pull Request Checklist

• Pull request includes a changelog file. The entry should:
  • Be a short description of your change which makes sense to users. "Fix a bug that prevented receiving messages from other servers." instead of "Move X method from EventStore to EventWorkerStore.".
  • Include 'Contributed by Your Name.' or 'Contributed by @your-github-username.' — unless you would prefer not to be credited in the changelog.
  • Use markdown where necessary, mostly for code blocks.
  • End with either a period (.) or an exclamation mark (!).
  • Start with a capital letter.
• Pull request includes a sign off

[clokep]

Additionally this will need a changelog file / sign-off as the PR template says.

[clokep]

Please add documentation for this configuration option.

[clokep]

@AzikDeveloper Do you have interest in finishing this off? See the comments above.