Announcing support for WASI on Cloudflare Workers

Introduced experimental support for WASI on Cloudflare Workers, enabling the execution of WASI-compiled WebAssembly binaries. Updated Wrangler2 to support WASI compilation and deployment. Provided examples of deploying CLI applications like 'hexyl', 'swc', and 'zstd' as cloud services. Included boilerplate for invoking WASI modules from JavaScript Workers.