Improve telemetry field name mapping

[amotl]

Introduction

Together with @MKO1640, we are considering to use the ESP32-e-Paper-Weather-Display by @G6EJD (thanks, David!) in order to display beehive information on a Waveshare e-Paper module [1].

We outlined how to use Arduino to acquire beehive data from the HTTP data export interface of Kotori at [2].

Objective

Therefore, we would like to improve the telemetry field name mapping for MQTT and HTTP not to yield the technical sensor names like temperature.0x77.i2c:0, humidity.0x77.i2c:0 or temperature.28ff641d8fc3944f.onewire:0.

This has already been done for the field name mapping for the Bee Observer project, so we would like to generalize that to the other telemetry adapters.

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[1] https://community.hiveeyes.org/t/anzeige-der-daten-auf-einem-e-paper-display/3229
[2] https://github.com/hiveeyes/hiveeyes-epaper-display/tree/master/lib/hiveeyes