add basic coredump generation (#5868)

This change adds a basic coredump generation after a WebAssembly trap
was entered. The coredump includes rudimentary stack / process debugging
information.

A new CLI argument is added to enable coredump generation:
```
wasmtime --coredump-on-trap=/path/to/coredump/file module.wasm
```

See ./docs/examples-coredump.md for a working example.

Refs https://github.com/bytecodealliance/wasmtime/issues/5732

Cargo.toml

@@ -42,6 +42,7 @@ wat = { workspace = true }
 serde = "1.0.94"
 serde_json = "1.0.26"
 wasmparser = { workspace = true }
+wasm-coredump-builder = { version = "0.1.11" }
 
 [target.'cfg(unix)'.dependencies]
 rustix = { workspace = true, features = ["mm", "param"] }