Add NeoPool NPHydrolysis percent and unit

[curzon01]

Description

• NPHydrolysis also accepts percentage values as parameters (<level> {%}), even for devices using g/h
• telemetry message SENSOR now always contains the values in percent in addition to the unit:

   "Hydrolysis": {
      "Data": 4.8,
      "Unit": "g/h",
      "Setpoint": 12,
      "Max": 16,
      "Percent": {
        "Data": 30,
        "Setpoint": 75
      },

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 with Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with Tasmota core ESP32 V.2.0.14
• I accept the CLA.