Merge branch 'issue/coefficient_type_default_basis' into 'master'

add coefficient type to DefaultProblemTraits

See merge request !69

src/amdis/ProblemStatTraits.hpp

@@ -57,10 +57,11 @@ namespace AMDiS
   } // end namespace Impl
 
   /// An Exemplar for ProblemStatTraits
-  template <class GlobalBasisType>
+  template <class GlobalBasisType, class T = double>
   struct DefaultProblemTraits
   {
     using GlobalBasis = GlobalBasisType;
+    using CoefficientType = T;
   };