Add support PTX Smart Tripl Wall Switch(090615.switch.x6kw3)

[qjrxsoft02]

from custom_components.xiaomi_gateway3.core.devices import *

DEVICES = [{
    # https://home.miot-spec.com/spec?type=urn:miot-spec-v2:device:switch:0000A003:090615-x6kw3:1:0000C810
    11654: ["PTX", "Smart Tripl Wall Switch", "PTX-X62-NMIMC1", "090615.switch.x6kw3"],
    "spec": [
        BaseConv("action", "sensor"),
        ConstConv("action", mi="8.e.1", value=BUTTON_1_SINGLE),
        ConstConv("action", mi="8.e.2", value=BUTTON_2_SINGLE),
        ConstConv("action", mi="8.e.3", value=BUTTON_3_SINGLE),
        BaseConv("switch_1", "switch", mi="2.p.1"),
        BaseConv("switch_2", "switch", mi="3.p.1"),
        BaseConv("switch_3", "switch", mi="4.p.1"),
        BaseConv("backlight", "switch", mi="9.p.1"), # config
        MapConv("Mode_1", "select", mi="2.p.2", map={0: "Wired And Wireless", 1: "Wireless"}),
        MapConv("Mode_2", "select", mi="3.p.2", map={0: "Wired And Wireless", 1: "Wireless"})
        MapConv("Mode_3", "select", mi="4.p.2", map={0: "Wired And Wireless", 1: "Wireless"})
    ],
}] + DEVICES