Demo program for ESP32 and logging to a webpage

[SV-Zanshin]

Is your feature request related to a problem? Please describe.
An additional example program showing how to send BME680 logging data to a web page would be helpful. The ESP32 has built-in WiFi so is a good hardware platform for this example

Describe the solution you'd like
A running example program for the ESP32 microprocessor platform showing BME680 data going to a self-hosted webpage using AJAX

Describe alternatives you've considered
While adding a WiFi breakout to a smaller Arduino is possible, that would require specific programming for the various WiFi breakout boards available. Each example would be for just one WiFi board and be too much effort.

Additional context
None

[SV-Zanshin]

Concidentally I have an ESP32 based board available and will play around with creating a small program to illustrate WiFi connectivity and logging to a webpage. This will be part of the development branch for v1.0.7

[SV-Zanshin]

I've got an example running and have expanded it to also log data to a SD-Card, if one is present. Will work on testing the program and cleaning up the code before adding it to the next release

[SV-Zanshin]

Completing final checks and preparing the Wiki documentation prior to publishing

[SV-Zanshin]

The Doxygen and Travis-CI tests passed successfully, so am closing this issue and hopefully v1.0.7 will get released soon; so far this is the only change for that release.