Add from_to config option

src/config/config.h

@@ -542,6 +542,7 @@ struct sequence_diagram : public diagram {
     common::model::diagram_t type() const override;
 
     option<std::vector<source_location>> start_from{"start_from"};
+    option<std::vector<std::vector<source_location>>> from_to{"from_to"};
 };
 
 /**

src/config/yaml_decoders.cc

@@ -574,6 +574,7 @@ template <> struct convert<sequence_diagram> {
             return false;
 
         get_option(node, rhs.start_from);
+        get_option(node, rhs.from_to);
         get_option(node, rhs.combine_free_functions_into_file_participants);
         get_option(node, rhs.generate_return_types);
         get_option(node, rhs.generate_condition_statements);

src/config/yaml_emitters.cc

@@ -348,6 +348,7 @@ YAML::Emitter &operator<<(YAML::Emitter &out, const sequence_diagram &c)
     out << YAML::BeginMap;
     out << YAML::Key << "type" << YAML::Value << c.type();
     out << c.start_from;
+    out << c.from_to;
     out << dynamic_cast<const inheritable_diagram_options &>(c);
     out << YAML::EndMap;
     return out;