* Changed data type of temperature

* Changed data type in EddystoneTLM class and example

* Revert "Changed data type in EddystoneTLM class and example"

This reverts commit 1f3a9414ee13341f80bd6d51cdbd57254aadfe97.

* Draft of Eddystone TLM example

* Adds MACROs to convert beacon temperature 

2 Macros
EDDYSTONE_TEMP_U16_TO_FLOAT(tempU16)  - takes the TLM BigEndian 8.8 fixed point representation and returns its float value 
EDDYSTONE_TEMP_FLOAT_TO_U16(tempFloat)  - takes a float (temperature) and returns its BigEndian 8.8 fixed point representation

* Fixed temp

* Changed to conform with PR comments

* Fixed comment on closing bracket

* Prints negative TEMP big endian as just 2 bytes

* Extacts correct Eddyston Service Data

* Fixes BLEEddystoneTLM::toString() negative temp

* Fixes URL field length

* Fixes Eddystone URL decoding

* Fixes MSB for iBeacon UUID

iBeacons use big endian BLE fields.

* Fix to detect iBeacon that also has Service UUID

This fix makes the BLE_iBeacon.ino to work correctly with the BLE_Beacon_Scanner.ino example

---------
Co-authored-by: NRodrigo Garcia <rodrigo.garcia@espressif.com>