feat: Add proper type definition for devices

Depending on the implemented traits the lua class will inherit from the
associated interface class.

It also specifies the constructor function for each of the devices.

definitions/interfaces.lua

@@ -0,0 +1,42 @@
+--- @meta
+
+---@class InterfaceDevice
+local InterfaceDevice
+---@return string
+function InterfaceDevice:get_id() end
+
+---@class InterfaceOnOff: InterfaceDevice
+local InterfaceOnOff
+---@async
+---@param on boolean
+function InterfaceOnOff:set_on(on) end
+---@async
+---@return boolean
+function InterfaceOnOff:on() end
+
+---@class InterfaceBrightness: InterfaceDevice
+local InterfaceBrightness
+---@async
+---@param brightness integer
+function InterfaceBrightness:set_brightness(brightness) end
+---@async
+---@return integer
+function InterfaceBrightness:brightness() end
+
+---@class InterfaceColorSetting: InterfaceDevice
+local InterfaceColorSetting
+---@async
+---@param temperature integer
+function InterfaceColorSetting:set_color_temperature(temperature) end
+---@async
+---@return integer
+function InterfaceColorSetting:color_temperature() end
+
+---@class InterfaceOpenClose: InterfaceDevice
+local InterfaceOpenClose
+---@async
+---@param open_percent integer
+function InterfaceOpenClose:set_open_percent(open_percent) end
+---@async
+---@return integer
+function InterfaceOpenClose:open_percent() end