Adapter connection result callbacks

[bretambrose]

• Adapter support for connection success and connection failure callbacks
• Update existing lifecycle tests to check new callbacks
• Add reconnect failure test

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Patch coverage: 94.44% and project coverage change: +0.16 🎉

Comparison is base (34d265b) 82.04% compared to head (6e5e08b) 82.20%.

Additional details and impacted files

@@                  Coverage Diff                  @@
##           AdapterResubStats     #306      +/-   ##
=====================================================
+ Coverage              82.04%   82.20%   +0.16%     
=====================================================
  Files                     19       19              
  Lines                   8448     8485      +37     
=====================================================
+ Hits                    6931     6975      +44     
+ Misses                  1517     1510       -7     

Impacted Files	Coverage Δ
source/v5/mqtt3_to_mqtt5_adapter.c	79.34% <94.44%> (+0.75%)	⬆️

... and 1 file with indirect coverage changes

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