split generate and clear script

Author: Simon Planinschek

package.json

@@ -9,7 +9,8 @@
   },
   "scripts": {
     "build": "tsc",
-    "generate": "rm -rf src/* && node generator.js",
+    "clear": "rm -rf src/*",
+    "generate": "node generator.js",
     "lint": "eslint --ext js,ts,tsx src ./generator.js",
     "lint:fix": "npm run lint -- --fix",
     "typecheck": "tsc --noEmit",