DEV-2625 Add transformer_tap_settings to workpackage request

[vincewhite]

Description

Adds the transformerTapSettings field to the workpackage class. This optional field determines what set distribution transformer tap settings are applied from an external source during [opendss]model generation.

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Code

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Probably not backwards compatible depending on what tries to deserialise the workpackage grpc message.

[ryanjcoleman]

Task linked: DEV-2625 Update EAS Python SDK to take tap transformer as a parameter