Raise an error on CRC mismatch, rather than fail an assertion

[oskarpearson]

In some cases mmeowlink encounters CRC errors in data pages, even though the comms channel CRCs are correct. This triggers a decocare assertion error.

I'm changing this to a 'raise' error instead, so that it can be caught by openaps and retried.

[loudnate]

:+1:

[oskarpearson]

Please don't merge yet.

I've just managed to catch this in action, and am now getting this error with the patch. I'll need to do another fix here.

    raise DataTransferCorruptionError("CRC does not match page data (len:%s, expected:0x%x, actual:0x%x)" % (len(data), crc, computed))
TypeError: %x format: a number is required, not bytearray

[oskarpearson]

@bewest I opted for the simplest solution here. Should be ready to go once CI finishes.

Thanks!