use filesystem::path instead of string to hold include paths passed on the command line

(cherry picked from commit 2f6f0d8c)

src/ConfigFile.cc

@@ -21,6 +21,7 @@
 #include <fstream>
 #include <utility>
 #include <vector>
+#include <filesystem>
 
 #include "ConfigFile.hh"
 
@@ -679,10 +680,10 @@ ConfigFile::transformPass()
     member_node.second /= weight_denominator;
 }
 
-vector<string>
+vector<filesystem::path>
 ConfigFile::getIncludePaths() const
 {
-  vector<string> include_paths;
+  vector<filesystem::path> include_paths;
   for (auto path : paths)
     for (const auto & mapit : path.get_paths())
       for (const auto & vecit : mapit.second)

src/ConfigFile.hh

@@ -130,7 +130,7 @@ public:
   //! Check Pass
   void transformPass();
   //! Get Path Info
-  vector<string> getIncludePaths() const;
+  vector<filesystem::path> getIncludePaths() const;
   //! Write any hooks
   void writeHooks(ostream &output) const;
   //! Create options_.parallel structure, write options

src/DynareMain.cc

@@ -408,8 +408,7 @@ main(int argc, char **argv)
 
   // If Include option was passed to the [paths] block of the config file, add
   // it to paths before macroprocessing
-  vector<string> config_include_paths = config_file.getIncludePaths();
-  for (const auto &it : config_include_paths)
+  for (const auto &it : config_file.getIncludePaths())
     paths.emplace_back(it);
 
   // Do macro processing