cue modules: move stdlib to pkg/alpha.dagger.io

In preparation for Europa, we will vendor multiple CUE modules:

- `pkg/alpha.dagger.io`: legacy non-europa packages
- `pkg/dagger.io`: core Europa packages
- `pkg/universe.dagger.io`: Europa universe

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

pkg/alpha.dagger.io/netlify/netlify.sh.cue

@@ -0,0 +1,56 @@
+package netlify
+
+#Site: ctr: command: #"""
+	export NETLIFY_AUTH_TOKEN="$(cat /run/secrets/token)"
+
+	create_site() {
+	    url="https://api.netlify.com/api/v1/${NETLIFY_ACCOUNT:-}/sites"
+
+	    response=$(curl -s -S --fail-with-body -H "Authorization: Bearer $NETLIFY_AUTH_TOKEN" \
+	                -X POST -H "Content-Type: application/json" \
+	                $url \
+	                -d "{\"name\": \"${NETLIFY_SITE_NAME}\", \"custom_domain\": \"${NETLIFY_DOMAIN}\"}" -o body
+	            )
+	    if [ $? -ne 0 ]; then
+		cat body >&2
+	        exit 1
+	    fi
+
+	    cat body | jq -r '.site_id' 
+	}
+
+	site_id=$(curl -s -S -f -H "Authorization: Bearer $NETLIFY_AUTH_TOKEN" \
+	            https://api.netlify.com/api/v1/sites\?filter\=all | \
+	            jq -r ".[] | select(.name==\"$NETLIFY_SITE_NAME\") | .id" \
+	        )
+	if [ -z "$site_id" ] ; then
+	    if [ "${NETLIFY_SITE_CREATE:-}" != 1 ]; then
+	        echo "Site $NETLIFY_SITE_NAME does not exist"
+	        exit 1
+	    fi
+	    site_id=$(create_site)
+	    if [ -z "$site_id" ]; then
+	        echo "create site failed"
+	        exit 1
+	    fi
+	fi
+
+	netlify link --id "$site_id"
+	netlify build
+
+	netlify deploy \
+	    --dir="$(pwd)" \
+	    --site="$site_id" \
+	    --prod \
+	| tee /tmp/stdout
+
+	url="$(cat /tmp/stdout | grep Website | grep -Eo 'https://[^ >]+' | head -1)"
+	deployUrl="$(cat /tmp/stdout | grep Unique | grep -Eo 'https://[^ >]+' | head -1)"
+	logsUrl="$(cat /tmp/stdout | grep Logs | grep -Eo 'https://[^ >]+' | head -1)"
+
+	# Write output files
+	mkdir -p /netlify
+	printf "$url" > /netlify/url
+	printf "$deployUrl" > /netlify/deployUrl
+	printf "$logsUrl" > /netlify/logsUrl
+	"""#