Add validaton for 64bit component model

This is a checklist issue to track the progress of the implementation side of [this 🐘 spec PR](https://github.com/WebAssembly/component-model/pull/624).

The following is a list of subfeatures that are not or only loosely related and can be worked on independently. Validating a 64bit component model module will (in general) only really work once they are all done, but since the feature is behind a feature flag, it is ok for the feature to be in an incomplete state.
- [x] Feature flag [#2496](https://github.com/bytecodealliance/wasm-tools/pull/2496)
- [x] resource rep [#2496](https://github.com/bytecodealliance/wasm-tools/pull/2496)
- [x] realloc [#2501](https://github.com/bytecodealliance/wasm-tools/pull/2501)
- [x] context.{get, set} [#2502](https://github.com/bytecodealliance/wasm-tools/pull/2502)
- [x] waitable-set.{wait, poll} [#2514](https://github.com/bytecodealliance/wasm-tools/pull/2514)
- [ ] stream.{read, write}
- [ ] future.{read, write}
- [ ] thread.{new-indirect, spawn-ref, spawn-indirect}
- [ ] error-context.{new, debug-message}