co⚡e: Sparkplug™ MQTT edge

v1.1.0.10 Device DBIRTH and DDATA working with stable seqnums.

> Encoder init separated from .addSeq
> Some EoN methods moved to Functions
> EoN notifies Device(s) when to Publish
> GC_SparkplugB Global Constants list
> Improved EoN state machine

TODO;
DDEATH
NCMD
DCMD

v1.1.0.5 Device ith may tweaks but still no working SeqNum for DDATA...

> Encoder init separated from .addSeq (!)
> Some EoN methods moved to Functions
> EoN notifies Device when to Publish
> GC_SparkplugB Global Constants list

Branch of Trunk

Device V1.1.0.1

TODO
* Check publishing DBIRTH Topic SeqNum (should be working)
* Check publish DDATA SeqNum (triggers REBIRTH, not correct yet)
* Publish DDEATH of a Device when occurs