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/docker/compose/tests/testdata/tsconfig.json

@@ -0,0 +1,12 @@
+{
+  "compilerOptions": {
+    "sourceMap": true,
+    "outDir": "dist",
+    "strict": true,
+    "lib": [
+      "esnext",
+      "dom"
+    ],
+    "esModuleInterop": true
+  }
+}