PartDesign: [skip ci] minor cosmetic changes

src/Mod/PartDesign/App/FeatureHole.cpp

@@ -1301,7 +1301,7 @@ App::DocumentObjectExecReturn *Hole::execute(void)
     }
 }
 
-void Hole::addCounterType(const CutDimensionSet dimensions)
+void Hole::addCounterType(const CutDimensionSet& dimensions)
 {
     HoleCutTypeMap.emplace(dimensions.name, dimensions);
     const std::string &name = dimensions.name;

src/Mod/PartDesign/App/FeatureHole.h

@@ -171,7 +171,7 @@ private:
 
     std::map<std::string, CutDimensionSet> HoleCutTypeMap;
 
-    void addCounterType(const CutDimensionSet dimensions);
+    void addCounterType(const CutDimensionSet& dimensions);
     bool isDynamicCounterbore(const std::string &holeCutType);
     bool isDynamicCountersink(const std::string &holeCutType);
     void updateHoleCutParams();

src/Mod/PartDesign/App/json_fwd.hpp

@@ -7,6 +7,12 @@
 #include <string> // string
 #include <vector> // vector
 
+/*
+Licensed under the MIT License <http://opensource.org/licenses/MIT>.
+SPDX-License-Identifier: MIT
+Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
+*/
+
 /*!
 @brief namespace for Niels Lohmann
 @see https://github.com/nlohmann