Initial provider implementation (#18)

This brings over the initial buildx prototype from pulumi/pulumi-docker
and fixes various build and release issues.

sdk/nodejs/tsconfig.json

@@ -13,9 +13,16 @@
         "strict": true
     },
     "files": [
+        "config/index.ts",
+        "config/vars.ts",
+        "image.ts",
         "index.ts",
+        "index_.ts",
         "provider.ts",
-        "random.ts",
+        "types/enums/index.ts",
+        "types/index.ts",
+        "types/input.ts",
+        "types/output.ts",
         "utilities.ts"
     ]
 }