…erstand

   Library structure is preserved, should be a drop in replacement (apart from device id)
   Decode incoming messages to direct usable decimals without further bit-shifting
   DeviceID is now 3 bytes long and can be set during runtime
   Counter2 is the decimal sum of all bytes in decoded form from deviceType up to the last byte before counter2 subtracted from zero.
   Encode outgoing messages in itho compatible format
   Added ICACHE_RAM_ATTR to 'void ITHOcheck()' for ESP8266/ESP32 compatibility
   Trigger on the falling edge and simplified ISR routine for more robust packet handling
   Move SYNC word from 171,170 further down the message to 179,42,163,42 to filter out more non-itho messages in CC1101 hardware

   Tested on ESP8266 & ESP32

Implemented basic incoming message validity check

reverted to 16 bits but a few byes further down the message than the original lib

…generation itho boxes)

The even bits are always the inverse of the odd bits, use this principle to improve stability of the itho command check

Clean up some of the logging code

fix: Change arduino.h to Arduino.h
fix: change typo 0, 5 to 0.5

feat: Add support to receive and monitor itho RF-RFT and RF-RV remotes.
feat: Add possibility to join devices (by join command or manually) to the lib and keep track of commands and values (co2, humidity, temp, battery)

New lib functions:

Manually add devices to the known devices list by ID:
bool addRFDevice(uint8_t byte0, uint8_t byte1, uint8_t byte2);
bool addRFDevice(uint32_t ID);

Manually remove devices to the known devices list by ID:
bool removeRFDevice(uint8_t byte0, uint8_t byte1, uint8_t byte2);
bool removeRFDevice(uint32_t ID);

Check is device is known by ID:
bool checkRFDevice(uint8_t byte0, uint8_t byte1, uint8_t byte2);
bool checkRFDevice(uint32_t ID);

Allow (true/false) if devices are allowed to join (standard value: true):
void setBindAllowed(bool input);

Get join allowed status:
bool getBindAllowed();

Receive and handle all devices (standard value: true, for backwards compatibility)
void setAllowAll(bool input);

Get allowed all devices status:
bool getAllowAll();

Get reference to struct which contains all remotes and last known data (co2, temp etc.)
const struct ithoRFDevices &getRFdevices() const;

Sample code to walk to data and create a JSON:

```
  DynamicJsonDocument doc(2000);
  JsonObject root = doc.to<JsonObject>();

  const ithoRFDevices &rfDevices = rf.getRFdevices();
  for (auto& item : rfDevices.device) {
	if (item.deviceId != 0) {
	  char buf[10];
	  snprintf(buf, sizeof(buf), "%02X,%02X,%02X", item.deviceId >> 16 & 0xFF, item.deviceId >> 8 & 0xFF, item.deviceId & 0xFF);
	  JsonObject nested = root.createNestedObject(buf);
	  nested["lastcmd"] = item.lastCommand;
	  if (item.co2 != 0xEFFF) {
		nested["co2"] = item.co2;
	  }
	  if (item.temp != 0xEFFF) {
		nested["temp"] = item.temp;
	  }
	  if (item.hum != 0xEFFF) {
		nested["hum"] = item.hum;
	  }
	  if (item.dewpoint != 0xEFFF) {
		nested["dewpoint"] = item.dewpoint;
	  }
	  if (item.battery != 0xEFFF) {
		nested["battery"] = item.battery;
	  }
	}
  }
```

Example resulting JSON:
```
{"E0,58,45":{"lastcmd":4},"52,4E,9A":{"lastcmd":0},"97,95,A1":{"lastcmd":0,"temp":2079,"hum":52,"dewpoint":1062},"97,28,ED":{"lastcmd":0,"co2":1033}}
```

- fix: bugs in example
- fix: initialise buffers to known value
- fix: includes
- fix: command bytes matching to be more specific
- fix: remove sprintf calls and replace them with snprintf
- change: standby command removed and replaced by away command
- feat: add support to receive different RF device types (RFT AUTO, RFT DF/QF, RFT CO2, RFT RV, preliminary Orcon support)
- feat: add command to name logging function

Add RF send support for different types of itho remotes (RFT Auto, RFT DF/QF, RFT CO2, RFT RV, RFT PIR, RFT Auto-N)
use:
rf.updateRFDeviceType(RemoteType, RemoteIndex); //to set remote type
Possible remote types:
  UNSETTYPE
  RFTCVE
  RFTAUTO
  RFTAUTON
  DEMANDFLOW
  RFTRV
  RFTCO2
  RFTPIR
  ORCON15LF01

RFT AutoN currently only supported in legacy mode