Leverage ECP chanperf

[TwitchBronBron]

Add support for the chanperf ECP request (instead of using the port 8080 commands).
https://developer.roku.com/en-gb/docs/developer-program/debugging/external-control-api.md#general-ecp-commands

1. check the firmware version (from the device-info object added in Do device-info query at start of debug session #121) to make sure it's at least firmware 11.0

2. Add a launch configuration object with this structure:

   "chanperf": {
        enabled: true,
        //  the interval (in milliseconds) that chanperf information should be collected 
        // (i.e. `5000` means run a chanperf request every 5 seconds)
        interval: 1000
   }

3. The logic should be added into ChanperfTracker.

We still need to fall back to the old telnet scraping method, but if we are able to successfully use the ECP command, then the old method's results should be discarded.