co⚡e: Sparkplug™ MQTT edge

* Added ItfSparkplugValue
* Refactoring of FB_SparkPlugValues to accomodate Composition instead of inheritance
* various updates on FB_Sparkplug_SimpleEncoder (Should change this name!)

Commit this code before going totally bonkers on the 'List'
so I can return to this revision when the code has sunk.

Cleaned up some info messages. Refactored EncodeNextString for speed. [#11]

Latest unittest (definitly BETA)

Addecd new Method to help with initialisation and NBIRTH / DBIRTH

Work in progress on unit tests & functionality tests for 'Add Metric'

Updated to working copy v0.0.1.3

Updated to working copy v0.0.1.3

Remaned MetricPool to AllMetricWhichWillEverReport and added hasSeq to FB_PayloadSimpleEncoder.Initialize... [#34]
The rename was not done in FB_Payload, as this may not be accurate there in future.

Refactored all tests to utilise a GVL_CONST list

Changed / added new testsuites for the main testing components

Fixed getEoNBirthCertificate SeqNum

Changed GetEncodeBlob Method definition

New Library element => New tests

Completely revised FB_SparkplugB_SimpleEncoder:

Node Death Certificate,
Node Birth Certificate,
Node Data,
Device Death Certificate,
Device Birth Certificate,
Device Data,
AddSimpleMetric( Timestamp, SimpleObject ),
AddMetricList( Timestamp, ListOfSimpleObjects ),
Diag,
Encode( Enable ),
Encoded,
EncoderBusy,
EncoderError( Error ),
InitEncoderBeforeAddingMetrics( Timestamp, SeqNr),
GetBDSeqNum,
GetSeqNum,
GetEncodedBlobViaAdress( BlobAdr, BlobSize )

latest library branch code in accordance with unittest

updated unittest in accordance with latest branch library code

update

Revised Diagnose Method

Updated FB_SparkplugSimpleEncoder

Updated small tidbits

TODO: Debug Test_EncodeMetricDateTime

slightly updated lib

slightly updated test

update of code before another crash of IDE occurs