co⚡e: Sparkplug™ MQTT edge

v1.5.0.3
Updated FB_ExponentialBackOffTimer to accomodate Ticket #160

v1.5.0.2
Fixed missing FB_PayloadDataSet,
Deleted MqttErrorToString()

v1.5.0.0 [#158] Migrated Stack to SP18 Development Environment and SP18 Compiler

I opened the project in SP18 and all the objects went orange.

#159 Renamed FB_SparkplugBSimple into FB_SparkplugBxCoderHandler
Fixed references and declarations
Removed FB_PayloadSimpleEncoder
Removed FB_PayloadSimpleDecoder

[#151] v1.4.3.3 Fixed Compiler warnings related to {attribute no-assign}

[133] v1.4.3.2 Added a method for an FB_Metric to initialize itself from a payload
Fixed bugs in FB_Metric.UpdateThisMetricFromPayload, FB_Payload*.GetColumnNext/GetkeyNext
Deleted obsolete function updatemetricfrompayload

Removed FB_SparkplugSimpleDecoder

Branch cleanup
Removed FB_MetricTemplate folder from main branch

[#133] v1.4.3.0 Templates branch now compiles but not yet tested
renamed some methods of IMetric
FB_Metric can now add itself to a Payload
FB_Template can now add itself to a Payload's PayloadMetric

[#133] Templates - Work in progress, does not compile
renamed FB_Metric._NotifyThem to _ValueChanged, as Property Notify is actually more complex

[#133] Templates - Work in progress, does not compile

[#154] V1.4.2.58 FB_Payload, Pool Management: Used FB_PayloadColumns are not reused

There were two pools for columns. reduced this to one and updated all references to it. Problem solved.

Also put the FB_Payload encode/decode methods into folders

v1.4.2.57
Refactored / STWeeped various functions.
STWeeped Global Constants, Variables and ProtoBufId
Moved some interfaces to interfaces folder
Excluded FB_MetricFileTransfer until ticket will be picked up.

v1.4.2.55
Various bugfixes in FB_WStringBuilder

Synced metrictemplate

[#133] Templates can be xBIRTHed

[#133] Added a FB_Template which implements ITemplate
one FB_Template can be registered to an FB_Metric
Several FB_Metrics can be registered to an FB_Template

v1.4.2.53
Edge and Devce now support Alias xCMD, see ticket [#104]
Tested with Ignition
Fixed warnings for implicit typecasting

Stack v1.4.2.50 bumped version number

Stack 1.4.2.20

Expanded Alias publishing mechanism: Aliases are announced during xBIRTH
and refered to while sending xDATA. Aliases mechanism is enabled per default.

Todo Edge:
Nodecommand should accept also aliases

Todo Host:
Alias from birth
Alias xDATA
Alias xCMD

v1.4.2.35
Moved IMessageSource Interface to Edge Library

Expanded IMetric with Alias Property
Version stays 1.4.2.33

v1.4.2.33;
Added Hidden Property Alias to FB_Metric,
Added Alias Property getter and setter

[#112] Read Only Metrics
FB_Metric now has a member Access, which can be ReadOnly or ReadWrite (default)