Convert descriptor and directory-entry-stream to resources, and update the dependencies to account for the changes in WebAssembly/wasi-io#46 and WebAssembly/wasi-clocks#50.
The wit-bindgen issue affecting CI is now fixed, and we now have at least some implementation experience with this, so let's land this and continue to iterate from here.
Convert
descriptor
anddirectory-entry-stream
to resources, and update the dependencies to account for the changes in WebAssembly/wasi-io#46 and WebAssembly/wasi-clocks#50.