Make license identifier compatible with LICENSE file (#72).

Author: dbrnz

package.json

@@ -30,7 +30,7 @@
     "tsdoc": "typedoc"
   },
   "author": "David Brooks",
-  "license": "MIT",
+  "license": "Apache-2.0",
   "dependencies": {
     "@deck.gl/core": "^9.0.17",
     "@deck.gl/geo-layers": "^9.0.18",