co⚡e: Sparkplug™ MQTT edge

v1.3.4.2
FB_PrimaryHost skeleton continued

Upgrade MQTT Client SL to currently latest v1.0.2.0
From CODESY Release Notes;
Integration of the library ‘Net Base Services’
Added filter mode for subscribers
Improved send/receive performance
Improved error handling
Bugfix: Clean up of interal queues after disconnect

Implemented int FB_EoNMQTT;
ITLSContextProvider : REFERENCE TO MQTT.NBS.ITLSContext; //Encapsulates all the data neccecray to handle encrypted tcp connections
//Static initialization, as shown in the following code snippet;
//
//VAR
// commonName : STRING := 'MyRasPi';
// ciCertInfo : NBS.CERT_INFO := (psInfo:=ADR(commonName), udiSize:=LEN(commonName));
// myTLSContext : NBS.TLSContext := (
// ePurpose:=NBS.PURPOSE.CLIENT_SIDE,
// sUseCaseName:='NBSTest',
// sTLSVersion:='1.3',
// ciCertInfo:=ciCertInfo,
// udiVerificationMode:=2
// );
//END_VAR
IASyncPropertyProvider : REFERENCE TO MQTT.NBS.IAsyncProperty; // Runs the connect process in a own background task. Use this property if the connection setup takes longer than one task cycle (e.g. TLS connections)

Removed keyword INTERNAL in various methods and properties

Branch of V1.3.1.4
Fully implemented EoN STATE subscriber