Adding WebAssembly Linking Support to Wild

This project aims to add WebAssembly support to the Wild linker. Wild linker is a high-performance Linux linker written in Rust, and supporting the WebAssembly format would expand its applicability to even more Rust development scenarios. While LLVM's wasm-ld (lld) is currently the primary linker used for WebAssembly, Wild achieves link speeds that are often several times faster than lld for ELF linking across many scenarios, including mold, which was previously considered the fastest Linux linker. Since the fundamental linking process remains largely the same when adding WebAssembly support, much of the performance-critical implementation could be reused. Achieving similar performance gains for WebAssembly would therefore significantly reduce build times for Rust projects.