Use overrides for ValveAccessory

[monkeycatdog]

Hey everyone, happy to use this plugin.
There are some issues with ValveAccessory, figured out the reason.

[monkeycatdog]

Related to
#235

[0x5e]

@monkeycatdog thanks, I'm busy at school these days, I will check it later.

[0x5e]

For Valve Accessory currently I only display the boolean schema with "switch" prefix to hide some unused schemas. What schema do you want to show up? @monkeycatdog

[monkeycatdog]

Previously, it was ignoring overrides. My valve with non-standard schema was not supported. For now, valve can be overridden as well. @0x5e

[0x5e]

thanks @monkeycatdog , beta.50 updated.

[twei7]

Hi, commit bf6f551 seems to cause a regression.
I have a device that has 4 switches (category set as ggq). Before the change, they can show up as a group with 5 buttons correctly. But with this change, only the first switch (switch_1) is shown.
I revert the change in my home bridge and all switch buttons come back.

"category": "kg",
    "functions": [
      {
        "code": "switch_1",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "switch_2",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "switch_3",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "switch_4",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "countdown_1",
        "type": "Integer",
        "values": "{\"unit\":\"s\",\"min\":0,\"max\":86400,\"scale\":0,\"step\":1}"
      },
      {
        "code": "countdown_2",
        "type": "Integer",
        "values": "{\"unit\":\"s\",\"min\":0,\"max\":86400,\"scale\":0,\"step\":1}"
      },
      {
        "code": "countdown_3",
        "type": "Integer",
        "values": "{\"unit\":\"s\",\"min\":0,\"max\":86400,\"scale\":0,\"step\":1}"
      },
      {
        "code": "countdown_4",
        "type": "Integer",
        "values": "{\"unit\":\"s\",\"min\":0,\"max\":86400,\"scale\":0,\"step\":1}"
      },
      {
        "code": "switch_all",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "power_status",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "dev_mode",
        "type": "Enum",
        "values": "{\"range\":[\"selflock\",\"inching\",\"interlock\"]}"
      },
      {
        "code": "jg_time",
        "type": "Integer",
        "values": "{\"unit\":\"S\",\"min\":5,\"max\":600,\"scale\":1,\"step\":5}"
      }
    ],