new voice commands for sentry mode

        {
            "command_type" : "sentry_on",
            "description" : "keep tesla safe",
            "command_regexp" : "^(keep (?:(((my )?)(car|tesla))|summer) safe)$",
            "tests_match": [
                ["keep summer safe"],
                ["keep tesla safe"],
                ["keep my tesla safe"],
                ["keep car safe"],
                ["keep my car safe"]
            ]
        },
        {
            "command_type" : "sentry_on",
            "description" : "turn sentry on",
            "command_regexp" : "^((turn )?(sentry|century)( mode)? on)$",
            "tests_match": [
                ["sentry on"],
                ["sentry mode on"],
                ["turn sentry mode on"]
            ]
        },
        {
            "command_type" : "sentry_off",
            "description" : "turn sentry off",
            "command_regexp" : "^((turn )?(sentry|century)( mode)? off)$",
            "tests_match": [
                ["sentry off"],
                ["sentry mode off"],
                ["turn sentry mode off"]
            ]
        },
        {
            "command_type" : "sentry_on",
            "description" : "enable sentry mode",
            "command_regexp" : "^(enable (sentry|century)( mode)?)$",
            "tests_match": [
                ["enable sentry"],
                ["enable sentry mode"],
                ["enable century mode"]
            ]
        },
        {
            "command_type" : "sentry_off",
            "description" : "disable sentry mode",
            "command_regexp" : "^(disable (sentry|century)( mode)?)$",
            "tests_match": [
                ["disable sentry"],
                ["disable sentry mode"],
                ["disable century mode"]
            ]
        }