homebridge-shelly No devices discovered
Hello,

The plugin doesn't discover my device (Shelly 2.5) configured as a roller shutter switch.

Here's the output of the `homebridge-shelly describe 192.168.1.26`:

homebridge-shelly describe 192.168.1.26
```
Type: SHSW-25
CoAP description: {"blk":[{"I":0,"D":"Relay0"},{"I":1,"D":"Relay1"},{"I":2,"D":"Device"}],"sen":[{"I":112,"T":"S","D":"State","R":"0/1","L":0},{"I":122,"T":"S","D":"State","R":"0/1","L":1},{"I":111,"T":"W","D":"Power","R":"0/2300","L":0},{"I":121,"T":"W","D":"Power","R":"0/2300","L":1},{"I":113,"T":"S","D":"Position","R":"0/100","L":2},{"I":118,"T":"S","D":"Input","R":"0/1/2","L":2},{"I":128,"T":"S","D":"Input","R":"0/1/2","L":2},{"I":115,"T":"tC","R":"-40/300","L":2},{"I":116,"T":"tF","R":"-40/300","L":2},{"I":117,"T":"Overtemp","R":"0/1","L":2}],"act":[{"I":211,"D":"Switch","L":0,"P":[{"I":2011,"D":"ToState","R":"0/1"}]},{"I":221,"D":"Switch","L":1,"P":[{"I":2021,"D":"ToState","R":"0/1"}]}]}
CoAP status: {"G":[[0,112,0],[0,122,0],[0,113,-1],[0,111,0],[0,121,0],[0,118,0],[0,128,0],[0,115,47.86],[0,116,118.15],[0,117,0]]}
HTTP Settings:: {"device":{"type":"SHSW-25","mac":"2CF432687141","hostname":"shellyswitch25-687141","num_outputs":2,"num_meters":2,"num_rollers":1},"wifi_ap":{"enabled":false,"ssid":"shellyswitch25-687141","key":""},"wifi_sta":{"enabled":true,"ssid":"FUNKY","ipv4_method":"static","ip":"192.168.1.26","gw":"192.168.1.254","mask":"255.255.255.0","dns":"192.168.1.254"},"wifi_sta1":{"enabled":false,"ssid":null,"ipv4_method":"dhcp","ip":null,"gw":null,"mask":null,"dns":null},"mqtt":{"enable":false,"server":"192.168.33.3:1883","user":"","reconnect_timeout_max":60,"reconnect_timeout_min":2,"clean_session":true,"keep_alive":60,"will_topic":"shellies/shellyswitch25-687141/online","will_message":"false","max_qos":0,"retain":false,"update_period":30},"sntp":{"server":"time.google.com"},"login":{"enabled":false,"unprotected":false,"username":"admin","password":"admin"},"pin_code":"","coiot_execute_enable":false,"name":"","fw":"20190822-102551/v1.5.3@1c2d4dd5","build_info":{"build_id":"20190822-102551/v1.5.3@1c2d4dd5","build_timestamp":"2019-08-22T10:25:51Z","build_version":"1.0"},"cloud":{"enabled":false,"connected":false},"timezone":"Europe/Paris","lat":48.856602,"lng":2.35222,"tzautodetect":true,"time":"13:13","hwinfo":{"hw_revision":"prod-2019-03","batch_id":1},"mode":"roller","max_power":1840,"relays":[{"name":null,"ison":false,"has_timer":false,"overpower":false,"default_state":"off","btn_type":"toggle","btn_reverse":0,"auto_on":0,"auto_off":0,"max_power":0,"btn_on_url":null,"btn_off_url":null,"out_on_url":null,"out_off_url":null,"schedule":false,"schedule_rules":[]},{"name":null,"ison":false,"has_timer":false,"overpower":false,"default_state":"off","btn_type":"toggle","btn_reverse":0,"auto_on":0,"auto_off":0,"max_power":0,"btn_on_url":null,"btn_off_url":null,"out_on_url":null,"out_off_url":null,"schedule":false,"schedule_rules":[]}],"rollers":[{"maxtime":20,"maxtime_open":30,"maxtime_close":30,"default_state":"stop","swap":false,"swap_inputs":false,"input_mode":"openclose","button_type":"toggle","btn_reverse":0,"state":"stop","power":0,"is_valid":true,"safety_switch":false,"schedule":false,"schedule_rules":[],"obstacle_mode":"disabled","obstacle_action":"stop","obstacle_power":200,"obstacle_delay":1,"safety_mode":"while_opening","safety_action":"stop","safety_allowed_on_trigger":"none","off_power":2,"positioning":true}],"meters":[{"power":0,"is_valid":true,"timestamp":1572786829,"counters":[17.184,0,0],"total":153},{"power":0,"is_valid":true,"timestamp":1572786829,"counters":[15.346,0.813,0],"total":146}]}
HTTP Status:: {"wifi_sta":{"connected":true,"ssid":"FUNKY","ip":"192.168.1.26","rssi":-58},"cloud":{"enabled":false,"connected":false},"mqtt":{"connected":false},"time":"13:13","serial":1,"has_update":false,"mac":"2CF432687141","relays":[{"ison":false,"has_timer":false,"overpower":false,"overtemperature":false,"is_valid":true},{"ison":false,"has_timer":false,"overpower":false,"overtemperature":false,"is_valid":true}],"rollers":[{"state":"stop","power":0,"is_valid":true,"safety_switch":false,"overtemperature":false,"stop_reason":"normal","last_direction":"open","current_pos":101,"calibrating":false,"positioning":true}],"meters":[{"power":0,"is_valid":true,"timestamp":1572786829,"counters":[17.184,0,0],"total":153},{"power":0,"is_valid":true,"timestamp":1572786829,"counters":[15.346,0.813,0],"total":146}],"temperature":47.86,"overtemperature":false,"tmp":{"tC":47.86,"tF":118.15,"is_valid":"true"},"update":{"status":"idle","has_update":false,"new_version":"20190822-102551/v1.5.3@1c2d4dd5","old_version":"20190822-102551/v1.5.3@1c2d4dd5"},"ram_total":49608,"ram_free":37720,"fs_size":233681,"fs_free":160389,"uptime":1324}
```