feat(examples): add stdout example

Signed-off-by: Mendy Berger <12537668+MendyBerger@users.noreply.github.com>

Author: MendyBerger

examples/components/http-stdio/.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+build
+generated/**
+*.tgz
+
+wit/deps

examples/components/http-stdio/.wash/config.yaml

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+new:
+  command: npm install
+
+build:
+  command: npm run build
+  component_path: dist/http_stdout.wasm

examples/components/http-stdio/README.md

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+# HTTP stdout/stderr
+
+A small WebAssembly component that demonstrates writing to stdout and stderr
+from an HTTP handler using [`wasi:cli`](https://github.com/WebAssembly/wasi-cli)
+streams.
+
+The component responds to `GET /?name=<name>`:
+
+## Usage
+
+```bash
+npm install
+npm run build
+npm run serve
+```
+
+Then send a request:
+
+```bash
+curl 'localhost:8000/?name=john'
+```

examples/components/http-stdio/nodemon.json

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+{
+  "watch": ["src"],
+  "ext": "ts",
+  "delay": 1000,
+  "exec": "wash dev"
+}