allow sending raw commands to devices

[lnr0626]

Proposed change

This arose while debugging #411 (and messing around with the other commands I found in the command tables). Essentially I found it a lot easier to debug the actual commands when I had the ability to send raw insteon commands through mqtt

I don't think this is a common use case, and there's some cleanup that needs to happen if this were desired (tests, docs, etc); but am happy to work through those if this is would be desired

Additional information

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• Tests have been added to verify that the new code works.
• Code documentation was added where necessary

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated

[krkeegan]

I can understand how something like this would be helpful.

I think you should allow a full extended message to be defined, not just all zero bytes. That gets a bit unweildy from the command line, but from a json mqtt message, the extended bytes can just be a list.

[lnr0626]

It does allow full extended commands - the mqtt message takes a data list, and the cli takes a -d/--data argument that's zero padded and trimmed to 14 bytes - the --ext-req flag is purely a convenience shorthand :-)

[krkeegan]

Ahh, I messed that. That is perfect then.

Yes, this would have been quite helpful at times. I had failed to realize it could be added so easily.

[lnr0626]

Cool beans, I'll add some docs and tests to get this ready to merge.

I'll also move the pad/trim logic to the message handler, and may switch the cmd name to raw_command or raw - do you have a preference?

[krkeegan]

I don't have a name preference. I can see a value in either.

[krkeegan]

Looks good to me, unless you have any more changes I will merge.

[lnr0626]

I think it's good to go, feel free to merge away :-)

[krkeegan]

This works in my setup. I didn't test extensively, but a basic test of standard commands worked as expected. Thank you for this, it is very helpful.