Update documentation for METRICO * \~/doc/architecture/metrico.md * No changes * \~/doc/service_design/monitoring/design_monitoring_services.md * Changed the picture with the RFS that shows the version * Changes the picture to depict the new characteristics (in v1.0 start and stop characteristics have been removed ) * Removed the description of start and stop characteristics * \~/doc/service_design/examples/monitoring_aas/monitoring_aas.md * Changed some pictures and removed \__MT__START_TIME and \__MT__STOP_TIME