Added support for ChargerSwitch.

Issue: #1

teslajsonpy/Charger.py

@@ -0,0 +1,53 @@
+from teslajsonpy.vehicle import VehicleDevice
+import time
+
+
+class ChargerSwitch(VehicleDevice):
+    def __init__(self, data, controller):
+        VehicleDevice.__init__(self, data, controller)
+        self.__id = data['id']
+        self.__vehicle_id = data['vehicle_id']
+        self.__vin = data['vin']
+        self.__state = data['state']
+        self.__controller = controller
+        self.__manual_update_time = 0
+        self.__charger_state = False
+        self.type = 'charger switch.'
+        self.hass_type = 'switch'
+        self.name = 'Tesla model {} {}'.format(
+            str(self.__vin[3]).upper(), self.type)
+        self.uniq_name = 'Tesla model {} {} {}'.format(
+            str(self.__vin[3]).upper(), self.__vin, self.type)
+        self.bin_type = 0x7
+
+        self.update()
+
+    def update(self):
+        self.__controller.update(self.__id)
+        data = self.__controller.get_charging_params(self.__id)
+        if time.time() - self.__manual_update_time > 60:
+            if data['charging_state'] != "Charging":
+                self.__charger_state = False
+            else:
+                self.__charger_state = True
+
+    def start_charge(self):
+        if not self.__charger_state:
+            data = self.__controller.command(self.__id, 'charge_start')
+            if data['response']['result']:
+                self.__charger_state = True
+            self.__manual_update_time = time.time()
+
+    def stop_charge(self):
+        if self.__charger_state:
+            data = self.__controller.command(self.__id, 'charge_stop')
+            if data['response']['result']:
+                self.__charger_state = False
+            self.__manual_update_time = time.time()
+
+    def is_charging(self):
+        return self.__charger_state
+
+    @staticmethod
+    def has_battery():
+        return False