Update config generation, join fix, sampler (#129)

- update timemory submodule
  - update ring_buffer to remove all dynamic allocation
  - update sampler + sampler allocator to use ring-buffers
  - fix papi_array and papi_vector labels
- fix common::join with char delimiter
- fix config generation without --advanced

source/bin/omnitrace-avail/generate_config.cpp

@@ -82,6 +82,10 @@ ignore_setting(const Tp& _v)
        category_view.count("settings::deprecated") == 0 &&
        _v->get_categories().count("deprecated") > 0)
         return true;
+    if(category_view.count("advanced") == 0 &&
+       category_view.count("settings::advanced") == 0 &&
+       _v->get_categories().count("advanced") > 0)
+        return true;
     return false;
 }
 }  // namespace
@@ -175,7 +179,8 @@ void pop(type_list<Tp...>)
             type_list<std::string>{}));
 }
 
-void update_choices(std::shared_ptr<settings>);
+void
+update_choices(const std::shared_ptr<settings>&);
 
 void
 generate_config(std::string _config_file, const std::set<std::string>& _config_fmts,
@@ -406,7 +411,7 @@ generate_config(std::string _config_file, const std::set<std::string>& _config_f
         _open(ofs, _fname, "text")
             << "# auto-generated by omnitrace-avail (version " << OMNITRACE_VERSION_STRING
             << ") on " << tim::get_local_datetime("%F @ %H:%M", &_time) << "\n\n"
-            << _ss.str() << "\n";
+            << _ss.str();
     }
 
     // restores the original serializer
@@ -416,7 +421,7 @@ generate_config(std::string _config_file, const std::set<std::string>& _config_f
 }
 
 void
-update_choices(std::shared_ptr<settings> _settings)
+update_choices(const std::shared_ptr<settings>& _settings)
 {
     std::vector<info_type> _info = get_component_info<TIMEMORY_NATIVE_COMPONENTS_END>();