refactor(client): start of JSON Protocol implementation

[RobertCraigie]

Change Summary

TODO: https://github.com/prisma/prisma/pull/19711/files

TODO:

• backwards compat for None stripping
• remove extend_selection
• custom select in count
• remove old query builder code & executing code
• check how raw queries work
• add tests for non-standard encoding
• fix support for selecting custom fields

Checklist

• Unit tests for the changes exist
• Tests pass without significant drop in coverage
• Documentation reflects changes where applicable
• Test snapshots have been updated if applicable

Agreement

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