Added specialization for get<bool>

src/config_file.hpp

@@ -22,6 +22,11 @@ namespace sc {
                 return sc::from_string<T>(it->second);
             }
 
+            bool get(const std::string& key, bool default_value) {
+                std::string val {get<std::string>(key, default_value ? "yes" : "no")};
+                return val == "yes";
+            }
+
         private:
             bool _has_dir {false};
             std::string _prog_name;