Make use of override for destructors, make some destructors default, …

[jwillemsen]

…add std::move for poa constructor arguments

[codecov]

Codecov Report

Merging #205 (1b3fc9d) into master (32df096) will decrease coverage by 0.00%.
The diff coverage is 92.59%.

@@            Coverage Diff             @@
##           master     #205      +/-   ##
==========================================
- Coverage   59.60%   59.60%   -0.01%     
==========================================
  Files         570      572       +2     
  Lines       47511    47515       +4     
  Branches     4186     4187       +1     
==========================================
+ Hits        28321    28322       +1     
- Misses      16119    16121       +2     
- Partials     3071     3072       +1     

Impacted Files	Coverage Δ
tests/localinterface/locala.cpp	34.61% <0.00%> (-15.39%)	⬇️
tests/obv/supports/supports_test_impl.cpp	63.07% <ø> (-1.63%)	⬇️
...ts/pi/forward_request/server_request_interceptor.h	50.00% <0.00%> (ø)
tests/poa/poamanager/poamanager.cpp	64.61% <ø> (ø)
tests/policies/oneway_timeouts/server.cpp	66.46% <ø> (ø)
tests/factory/hello.cpp	100.00% <100.00%> (ø)
tests/factory/hello.h	100.00% <100.00%> (ø)
tests/interface/hello.cpp	73.86% <100.00%> (ø)
tests/is_equivalent/hello.cpp	69.09% <100.00%> (-1.09%)	⬇️
tests/is_equivalent/hello.h	100.00% <100.00%> (ø)
... and 14 more

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