update to 1.5.0

Add the ability to set the ASW config as an object, as an addition to the existing config path.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "s3-batch-upload",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "description": "Super fast batched S3 folder uploads from CLI or API.",
   "main": "./index.js",
   "types": "./index.d.ts",