Bump pyvlx to 0.2.19

[tikismoke]

Breaking change

Proposed change

Julius2342/pyvlx#59 (comment)

Bump pyvlx lib version to:
-add support of dexxo smart io.

Julius2342/pyvlx@0.2.18...0.2.19

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• Dependency upgrade
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• New integration (thank you!)
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[MartinHjelmare]

Please add a link to a changelog or GitHub commit compare view for the version bump in the PR description. Thanks!

[jirkapas]

Commit comparison with the previous version: Julius2342/pyvlx@0.2.18...0.2.19
Release comment:

• Adds support for dexxo smart io devices (#59, thanks @otokarl)
• Huge refactoring, new frames, reorganisation of files (#56, thanks @icommitdesnet )
• Less debug output (#55, thanks @pawlizio)
• Updated documentation (#51, thanks @fabaff)

[MartinHjelmare]

Please run the gen_requirements_all.py script and commit the changes. See the bullet in the PR description.

[MartinHjelmare]

Thanks!