Added the ability to send commands.
Custom async messages - the command has 2 fields:
Async Message Type - has a size of 2 bytes and a HEX input pattern.
Async Message Body - Unlimited data size, HEX input pattern. This field is optional, because there are commands that do not require a body.
Note: The byte order of the input data must be Little-endian.
Request configuration from OEM - this is action setting without additional fields. The aim of this command is to tell the device to obtain the current default configuration from the manufacturer's server. If everything goes well, it will reconnect to the flespi server and continue sending data.