WebSend http PUT with JSON payload

[cjstephan]

Description:

WebSend may now use http PUT for starting my vacuum cleaner.

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works on Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with core ESP32 V.1.0.6
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

Sorry, I did not found out how to run CI tests. Is Github doing this automatically on push event?
This is my first try of a pull request so please be lenient.

[s-hadinger]

Thanks. I'm not a big fan of changing the hostname to indicate a PUT. I'm surprised your vacuum cleaner needs a PUT rather than a POST. Unless we come with a more generic version, this looks very specific to your use case.

[github-actions]

This PR has been automatically marked as stale because it hasn't any activity in last few weeks. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions]

This PR was automatically closed because of being stale.