Upgrade SDK to use ApplyNamespace instead of ApplyScope

[jaredoconnell]

Fixes #179

Changes introduced with this PR

This upgrades the SDK. This switches out a few function calls, and utilizes a convenience type for InvalidSerializationDetector.

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[dbutenhof]

I keep going back and forth between here and the SDK change. (It's annoying that, while GitHub deigns to show me reference/declaration links, it seems to be using the old code: e.g., a reference to the new addInputNamespacedScopes shows the old declaration.)

Basically, this map-of-map-of-schema.ObjectSchema is unwieldy, almost like there ought to be another level of abstraction here. Still, I don't see anything wrong...

[webbnh]

Looks generally good; however, instead of modifying anySchemaWithExpressions to keep it compatible with schema.AnySchema, please consider embedding schema.AnySchema in anySchemaWithExpressions and removing the redundant receivers. Likewise, please check the receivers of InvalidSerializationDetectorSchema and see if there are any which you can remove, now that it embeds schema.ScalarType (I think there might be several).

[jaredoconnell]

I agree that the map of map isn't ideal. I could try a type alias, but I don't think that's worth it. I don't think much is gained by much more abstraction.
I reduced redundancy in anyTypeWithExpressions by embedding it. All redundant functions were already removed in InvalidSerializationDetector in a prior commit.

[webbnh]

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