Raw table improvements

[simolus3]

This adds support for new raw table features for version 0.4.11 of the core extension. For more context, also see the Kotlin PR.

This adds the RawTableSchema class containing the name of a raw table with additional options. It can be passed to the new RawTable.inferred constructor, which then makes the put and delete statements optional because they can be inferred from the database schema.

This also adds RawTable.clear, which has been added in the previous core extension update.

Because a RawTableSchema also contains options that are shared with regular JSON-based tables, I've extracted them into a shared class. To keep backwards-compatibility (and especially to keep Table constructors const), I've made Table extend the new TableOptions class. I've also deprecated the ability to extend Table, the class is really just a descriptive struct and we don't want users to potentially override methods like validate.