Fixed including of Traits.h in Solvers/Linear and added to CMakeLists.txt.

src/TNL/Solvers/Linear/CMakeLists.txt

@@ -16,6 +16,7 @@ SET( headers BICGStab.h
              SOR_impl.h
              TFQMR.h
              TFQMR_impl.h
+             Traits.h
              UmfpackWrapper.h
              UmfpackWrapper_impl.h
    )

src/TNL/Solvers/Linear/Preconditioners/Preconditioner.h

@@ -15,8 +15,7 @@
 #include <TNL/Containers/VectorView.h>
 #include <TNL/Pointers/SharedPointer.h>
 #include <TNL/Config/ParameterContainer.h>
-
-#include "../Traits.h"
+#include <TNL/Solvers/Linear/Traits.h>
 
 namespace TNL {
 namespace Solvers {