intertechno: Fix head and tail formatter

[jdemel]

The head and tail formatter for the Intertechno gateway were missing a trailing "0". After adding these, the ITGW-433 can operate a CMR1000.

The corresponding work can be found here:
https://www.instructables.com/Intertechno-LAN-Gateway-ITGW-433-and-OpenHAB/

Fixes #29

[d-Rickyy-b]

Thank you very much for spotting and fixing the issue. I appreciate your work. May I ask you to add fixes to the test cases too?

Specifically it should be only one broken test case:

pyBrematic/pyBrematic/gateways/tests/intertechno_gateway_test.py

Line 39 in 1ae215c

self.assertEqual("0,0,2345,111,557,91919,A,SIGNAL-A,B,B,A-SIGNAL,C,1,432", payload)

This should rather be

self.assertEqual("0,0,2345,111,557,91919,0,A,SIGNAL-A,B,B,A-SIGNAL,C,1,432,0", payload)

I'll merge when the tests are green.

[jdemel]

I managed to push the updated commit without the changes in the tests file. This should be fixed now. Also, I'd expect the tests to complete successfully now.

[d-Rickyy-b]

Thank you for the update. The tests went through, sadly there's an issue with the coverage run. I guess the GITHUB_TOKEN is not available on third party PRs? Anyway, still fine to merge :)

[jdemel]

Thanks for taking care of it!