Add additional parameters for webapp site config

[l3ender]

SUMMARY

This PR updates the azure_rm_webapp module to support the following parameters:

• always_on: Keeps the app loaded even when there's no traffic.
• min_tls_version: The minimum TLS encryption version required for the app.
• ftps_state: The state of the FTP/FTPS service.

This PR also has a small change which fixes #421.

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

azure_rm_webapp
azure_rm_webapp_info

ADDITIONAL INFORMATION

Please see updated test case for detail and validation.

[l3ender]

@Fred-sun Another PR--thank you! ;)

[Fred-sun]

@Fred-sun Another PR--thank you! ;)

@l3ender Okay, we'll move forward with the merger as soon as possible. Thank you for your contribution!

[Fred-sun]

@l3ender Any updates on the comments above? Thank you very much!

[l3ender]

Hi @Fred-sun, I don't see any comments. Can you let me know what you'd like me to do?

Thanks!

[Fred-sun]

@l3ender The client_affinity_enabled parameter is a bool and the default value is True. You are advised not to change this parameter. Thank you very much!

line 702:
            if self.client_affinity_enabled is not None:
          rebase  to ---  if self.client_affinity_enabled:

[l3ender]

The client_affinity_enabled parameter is a bool and the default value is True.

The change on line 702 of the azure_rm_webapp.py file is actually a bugfix where client_affinity_enabled is not correctly configured when module input parameter is false. There is an issue logged for it at #421.

I noticed the same issue with client_affinity_enabled incorrect behavior when adding the new parameters in this PR, so I went ahead and fixed it. My apologies for combining the changes into a single PR and for not providing any detail on the reason for that change. I hope it is okay!!

Thank you!

[Fred-sun]

@l3ender Thanks for you contribute!

[l3ender]

Thank you for the review and suggestions. I have updated and please let me know if there is anything else.

[xuzhang3]

LGTM, shipping it.