delegate: Refactored delegate module to be more secure

[RicoAntonioFelix]

Change

• Refactored delegate module to be more secure by taking references which can never be null

Signed-off-by: "Rico Antonio Felix" <"[email protected]">

[codecov]

Codecov Report

Merging #7 into dev will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##              dev       #7   +/-   ##
=======================================
  Coverage   98.01%   98.01%           
=======================================
  Files         247      247           
  Lines       64232    64232           
  Branches     1082     1082           
=======================================
  Hits        62959    62959           
  Misses        543      543           
  Partials      730      730

Impacted Files	Coverage Δ
bfsdk/tests/test_delegate.cpp	100% <100%> (ø)	⬆️
bfsdk/include/bfdelegate.h	100% <100%> (ø)	⬆️

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