Enhance CI for more coverage

[jeking3]

No description provided.

[jeking3]

Interesting gcc 4.4 failure with expanded coverage

/usr/include/c++/4.4/bits/shared_ptr.h:1005: error: cannot use typeid with -fno-rtti
    "g++-4.4"   -std=c++0x -fvisibility-inlines-hidden -fno-rtti -m64 -O0 -fno-inline -Wall -g -fvisibility=hidden  -DBOOST_ALL_NO_LIB=1 -DBOOST_NO_RTTI -DBOOST_NO_TYPEID  -I"../.." -c -o "../../bin.v2/libs/program_options/test/options_description_no_rtti_test.test/gcc-4.4/debug/cxxstd-0x-iso/link-static/rtti-off/visibility-hidden/options_description_test.o" "../../libs/program_options/test/options_description_test.cpp"
...failed gcc.compile.c++ ../../bin.v2/libs/program_options/test/options_description_no_rtti_test.test/gcc-4.4/debug/cxxstd-0x-iso/link-static/rtti-

Probably need to drop gcc 4.4 from the list of compilers tested in expanded CI based on this...

[codecov]

Codecov Report

Merging #55 into develop will increase coverage by 0.07%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop      #55      +/-   ##
===========================================
+ Coverage    49.89%   49.96%   +0.07%     
===========================================
  Files           23       23              
  Lines         1385     1385              
  Branches       707      707              
===========================================
+ Hits           691      692       +1     
  Misses         110      110              
+ Partials       584      583       -1

Impacted Files	Coverage Δ
...de/boost/program_options/detail/value_semantic.hpp	43.75% <0%> (+1.56%)	⬆️

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