allow importing @smogon/sprite-root to get root

lib/root/index.ts

@@ -0,0 +1,3 @@
+
+import path = require('path');
+export = path.resolve(__dirname, "../../../" /* extra path component is because we will be in dist/ */);

lib/root/package.json

@@ -0,0 +1,7 @@
+{
+    "name": "@smogon/sprite-root",
+    "dependencies": {
+        "@types/node": "^14.10.1"
+    },
+    "main": "dist/index.js"
+}

lib/root/tsconfig.json

@@ -0,0 +1,9 @@
+{
+    "extends": "../../tsconfig-base",
+    "compilerOptions": {
+        "outDir": "dist",
+        // We need commonjs for __dirname
+        "module": "commonjs",
+        "esModuleInterop": false
+    }
+}