DDF for IKEA RODRET Dimmer

[ebaauw]

While this device looks like half a STYRBAR, it acts differently. It picks a group ID on reset, reports this through Touchpoint Commissioning, and creates a non-removable binding from the client On/Off cluster to this group. This means config.group should match this group ID, and we need to create a binding of the client Level Control cluster to this group as well.
Note that the device also sends an Add Group to the coordinator for the group it picked on reset.

Changes:

• Renamed DDF;
• Fixed indentation;
• Add productid to show the product ID (Exxxx), sourced from 0x0000/0x000A.
• Add config/alert;
• config/battery:
  • Change reporting to 300/2700/0x01;
  • Changed "fn": "zcl" to "fn": "zcl:attr"l
  • Add read with refresh.interval of 86400;
  • Add awake;
• state/buttonevent: add `awake;
• Expose cap/group (to read the group from the Touchpoint Commissioning cluster and config/group (to create the group bindings). Through some C++ magic, the Get Group Identifier Response is used to populate config/group. While the API exposes this as read/write, changing it will not work, as the bindings to the Touchpoint Commissioning group cannot be removed.
• Changed order of bindings to do the client clusters first. Device becomes incommunicado without any client cluster bindings.
• Use group bindings for client clusters.

{
  "capabilities": {
    "group": "23998"
  },
  "config": {
    "alert": "none",
    "battery": 100,
    "group": "23998",
    "on": true,
    "reachable": true
  },
  "ep": 1,
  "etag": "96ae43c63f3bedd3685532de8bb2df5c",
  "lastannounced": null,
  "lastseen": "2023-09-16T09:44Z",
  "manufacturername": "IKEA of Sweden",
  "mode": 1,
  "modelid": "RODRET Dimmer",
  "name": "Rodret",
  "productid": "E2201",
  "state": {
    "buttonevent": 1002,
    "lastupdated": "2023-09-16T09:11:04.895"
  },
  "swversion": "1.0.47",
  "type": "ZHASwitch",
  "uniqueid": "b4:35:22:ff:fe:4b:b5:c1-01-1000"
}

Generic

• Add cap_group_item.json;
• Add touchlink_commissioning_cluster/1000_get_group_identifiers.js to parse the Get Group Identifiers Response into cap/group.

Legacy Code

• binding.cpp: Bug fix: legacy code would still create a config/group item and corresponding groups resource on DDF managed devices.
• resource.cpp, resource.h: Add RCapGroup;
• rest_sensors.cpp: Expose capabilities and productid on sensors resources that support these;
• general.xml: Rename ZLL Commissioning to Touchpoint Commissioning, in line with ZCL v8 spec.

This PR was part of #7218.

[ebaauw]

Note config/alert was missing - fixed in #7238.