- `std::apply` is part of C++17 and the compiler wants to use it because
of ADL. Thus it is now necessary to escape it as `::apply`.
- remove some `using namespace std` remaining in the sources.
- fix simple warnings.
CMAES-like algorithm (edoAlgoAdaptive) main loop work on an extern distribution passed as a reference, which is updated at each iteration
EDA-like algorithm (edoAlgoStateless) work on an intern distribution, that is replaced at each iteration
edoAlgoStateless inherits from edoAlgoAdaptive, and embed a default member on which the work is done.