quell cppcheck warnings for non-explicit constructor

- the implicit casts from std::string/char* is part of the design for
the view class so we do not want to disable those.
- intializer list constructors should be implicitly called

opm/parser/eclipse/EclipseState/Schedule/CompletionSet.hpp

@@ -28,6 +28,7 @@ namespace Opm {
     class CompletionSet {
     public:
         CompletionSet() = default;
+        // cppcheck-suppress noExplicitConstructor
         CompletionSet( std::initializer_list< Completion > );
 
         using const_iterator = std::vector< Completion >::const_iterator;