feat: Add cache exporting and hydration capabilities

[rpechuk]

Added better typing to caches and also the ability to import/export caches to Arrow IPC stream format. Then integrated this new functionality into the publish package alongisde better type propogation to ensure everything is working properly.

IMPORTANT NOTE: When this is merged a new release will need to be cut due to the use of the new .import() function in the generated code as part of publish. This could be fixed by bundling current version of external packages into published visualization directory and refrencing this instead of CDN but let's discuss this in #682.

[jheer]

Looking good, modulo some small suggested changes.

[jheer]

LGTM