chore(config): Pass encoding as entire config option

[devsjc]

Contribution Checklist

• Have you followed the Open Climate Fix Contribution Guidelines?
• Have you referenced the Issue this PR addresses, where applicable?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
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• Have you written new tests for your changes, where applicable?
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Changes in this Pull Request

Makes the encoding entirely specified in the config. This enables the data type to be more clearly controlled between satellites.

Important

This change is then used to make the storage format int16 for the satellite data!