co⚡e: Sparkplug™ MQTT edge

merging unittest from /branches/i-campbell/

merging example project from branches/i-campbell/

v0.9.9.7 from branches/i-cambell/ to trunk

lib v0.9.9.7 Major refactor of visibility to the end user

Moved internal examples to separate application with 'unittest' keyword
upped lib to 0.9.9.7

Added compiler define "unittest" to unittest, to allow bypassing of INTERNAL and PRIVATE
upped libman to 0.9.9.7

branching example to branches/i-campbell

branching /trunk lib to /branches/i-campbell/

branching trunk unittest to /branches/i-campbell

binary example and lib for trunk

v0.9.9.6 Fixed bugs in exponential reconnecting of FB_EoN Node
- it now issues a NBIRTH if it reconnects
- it now logs some better times for reconnecting
- it now is not as dependent on a 250ms cycle time for logging reconnect timers.

added some comments to the TLS for the example

binary commits of v0.9.9.5 lib and example

v0.9.9.5 example

commit of example for trunk pre-merge

v0.9.9.5
Exponential Backoff Timer Implemented

v0.9.9.5
Exponential Backoff Timer Implemented

Example extended with exponential timer prgram

EoN Fixed RECONNECT after remote loss of connection
SimpleValues fixed AcknowledgeNotify handshake

Commit of v0.9.9.0
Succesfull Rebirth Mechanism (with a few mandatory errors in log)
Succesfull local Disconnect / local Reconnect (with no errors in log)

Commit of Succesfull Rebirth proof

Rework on state machine in EoN
Rework on methods in MQTT Client

Rewriteing the State machine to accomodate the corect interaction of the Subscriber and MQTT Client Function Blocks

0.9.1.4 fixed bug in log message for NCMD

removing i-campbell branch