SvelteKit SSR zip example (#561)

* sveltekit ssr sam template

* sveltekit ssr build script

* sveltekit ssr doc

* init node adapter configured sveltekit ssr app

* replace build script with makefile

* add wrapper script

* sam build with make

* doc sam build with make

* include deps

* remove build dir from doc

examples/sveltekit-ssr-zip/README.md

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+# Sveltekit SSR (Server Side Rendering)
+
+This example shows how to use Lambda Web Adapter to run a [server side rendered Sveltekit](https://svelte.dev/tutorial/kit/ssr) application on the managed nodejs runtime. 
+
+### How does it work?
+
+Add the Lambda Web Adapter layer to the function and configure the wrapper script. 
+
+1. attach Lambda Adapter layer to your function. This layer containers Lambda Adapter binary and a wrapper script. 
+    1. x86_64: `arn:aws:lambda:${AWS::Region}:753240598075:layer:LambdaAdapterLayerX86:23`
+    2. arm64: `arn:aws:lambda:${AWS::Region}:753240598075:layer:LambdaAdapterLayerArm64:23`
+2. configure Lambda environment variable `AWS_LAMBDA_EXEC_WRAPPER` to `/opt/bootstrap`. This is a wrapper script included in the layer.
+3. set function handler to a startup command: `run.sh`. The wrapper script will execute this command to boot up your application. 
+
+To get more information of Wrapper script, please read Lambda documentation [here](https://docs.aws.amazon.com/lambda/latest/dg/runtimes-modify.html#runtime-wrapper). 
+
+### Create and configure SvelteKit SSR app
+
+\* *this example was created from the steps in this section. repeating them is not required*
+
+1. `npx sv create app`
+    1. select `SvelteKit minimal` option
+    1. select `Yes, using Typescript syntax` option
+    1. repeatedly select enter to complete sveltekit install with default options
+
+1. `cd app` to switch current working directory to newly created `app` directory:
+    1. `npm install --save-dev @sveltejs/adapter-node` to install sveltekit [node adapter](https://svelte.dev/docs/kit/adapter-node)
+    1. `npm uninstall @sveltejs/adapter-auto` to remove unused auto adapter
+    1. replace `import adapter from '@sveltejs/adapter-auto';` with `import adapter from '@sveltejs/adapter-node';` in `svelte.config.js`
+    1. add a `run.sh` [wrapper](https://docs.aws.amazon.com/lambda/latest/dg/runtimes-modify.html#runtime-wrapper) script:
+    ```sh
+    cat << EOF > ./run.sh
+    #!/bin/bash
+
+    node index.js
+    EOF
+    ```
+
+### Build and deploy SSR SvelteKit on Lambda
+
+Run the following commands to build and deploy the application to lambda. 
+
+```bash
+sam build --use-container
+sam deploy --guided
+```
+When the deployment completes, take note of the SvelteKitSsrFunctionUrlEndpoint output value. This is the function URL. 
+
+### Verify it works
+
+Open function's URL in a browser to display the "Welcome to SvelteKit" page.

examples/sveltekit-ssr-zip/app/.gitignore

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+node_modules
+
+# Output
+.output
+.vercel
+.netlify
+.wrangler
+/.svelte-kit
+/build
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*

examples/sveltekit-ssr-zip/app/.npmrc

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+engine-strict=true

examples/sveltekit-ssr-zip/app/Makefile

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+BUILD_DIR=${CURDIR}/build
+
+# delete:
+# 1. ./build directory created by @sveltejs/adapter-node
+# 2. app ./node_modules
+clean:
+	rm -rf ./build
+	rm -rf ./node_modules
+
+install:
+	npm install
+
+# build @sveltejs/adapter-node app with prod deps: https://svelte.dev/docs/kit/adapter-node#Deploying
+build:
+	npm run build
+	cp ./run.sh $(BUILD_DIR)
+	cp ./package*.json $(BUILD_DIR)
+	cd $(BUILD_DIR) && npm ci --omit dev
+
+build-SvelteKitSsrFunction: clean install build
+	cp -r $(BUILD_DIR)/. $(ARTIFACTS_DIR)

examples/sveltekit-ssr-zip/app/README.md

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+# sv
+
+Everything you need to build a Svelte project, powered by [`sv`](https://github.com/sveltejs/cli).
+
+## Creating a project
+
+If you're seeing this, you've probably already done this step. Congrats!
+
+```bash
+# create a new project in the current directory
+npx sv create
+
+# create a new project in my-app
+npx sv create my-app
+```
+
+## Developing
+
+Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
+
+```bash
+npm run dev
+
+# or start the server and open the app in a new browser tab
+npm run dev -- --open
+```
+
+## Building
+
+To create a production version of your app:
+
+```bash
+npm run build
+```
+
+You can preview the production build with `npm run preview`.
+
+> To deploy your app, you may need to install an [adapter](https://svelte.dev/docs/kit/adapters) for your target environment.