Nonlocal: Raw -> Smart Pointers. Improved config of standalone dump_nonlocal_field.

src/external/Nonlocal/PNL_PippardFitter.h

@@ -36,6 +36,8 @@
 //#endif
 #include <fftw3.h>
 
+#include <memory>
+
 #include "PMusr.h"
 #include "PUserFcnBase.h"
 #include "PNL_StartupHandler.h"
@@ -57,8 +59,8 @@ class PNL_PippardFitterGlobal
   private:
     Bool_t fValid{true};
 
-    PNL_StartupHandler *fStartupHandler{nullptr};
-    PRgeHandler *fRgeHandler{nullptr};
+    std::unique_ptr<PNL_StartupHandler> fStartupHandler;
+    std::unique_ptr<PRgeHandler> fRgeHandler;
 
     mutable std::vector<Double_t> fPreviousParam;