Function enocean::enocean::esp3_of_enocean_message

pub fn esp3_of_enocean_message(em: Vec<u8>) -> Result<ESP3, ParseEspError>

Main function which convert an u8 vector of incoming byte into an ESP3 variable :

Size (Byte)	1	2	1	1	1	u16 DataLen + u8 OptionLen	1
Content	0x55	u16DataLen	u8OptionLen	u8Type	CRC8H	DATAS	CRC8D

/// Optionnal data :

| Size (Byte) | 1 | 4 | 1 | 1 |
|-------------|-------------|------------------|----------|------------------|
| Content | Subtel nb | Destination ID | dBm | Security level |

Data (BS1 example) :

| Size (Byte) | 1 | 1 | 4 | 1 |
|-------------|---------------|------------------------|----------------|----------|
| Content | Rorg (0xD5) | Data payload as EEP* | Sender ID | Status |