Split `entrypoint.ts` artifact into two artifacts: query text and normalization AST

Problem and solution

An entrypoint is two things: query text and normalization AST
We do not need the normalization AST to make the network request, just the query text
We should split this into two files, with the entrypoint (containing the query text) importing the file with the normalization AST.
The files should be named Type/field/entrypoint.ts (containing the query text) and /normalization.ts, containing the normalization AST.

This unblocks the following:

This will make it possible to asynchronously load the normalization AST, for example right after the query text is loaded, when the network request is made or when the network response is received
We do not want to asynchronously load the normalization AST, as not having the normalization AST means that we cannot determine whether the network request can be completed from the store, so there is a legitimate use case for bundling the normalization AST (i.e. with a regular import) with the query text