Improved parameter parsing from config file

phigrape.h

@@ -0,0 +1,21 @@
+#pragma once
+#include <string>
+
+struct Parameters {
+    double      eps;
+    double      t_end;
+    double      dt_disk;
+    double      dt_contr;
+    double      dt_bh;
+    double      eta;
+    std::string input_file_name;
+    bool        dt_min_warning;
+    int         live_smbh_count;
+    double      live_smbh_custom_eps;
+    bool        live_smbh_output;
+    bool        live_smbh_neighbor_output;
+    int         live_smbh_neighbor_number;
+    bool        binary_smbh_pn;
+    bool        binary_smbh_influence_sphere_output;
+    double      binary_smbh_influence_radius_factor;
+};