Add corejs config to allow polyfilling of Symbol for IE11 (#17)

libraries/o-error/babel.config.json

@@ -1,7 +1,9 @@
 {
   "presets": [
     ["@babel/env", {
-      "targets": ["last 1 year", "ie 11", "firefox esr"]
+      "targets": ["last 1 year", "ie 11", "firefox esr"],
+      "useBuiltIns": "usage",
+      "corejs": { "version": 3 }
     }]
   ]
 }