Backporting audit log reasons and createRole with position for 11.2 (#1810)

* Backporting audit log reasons and createRole with position for 11.2

* Sending kick reason via header rather than via query

src/structures/PermissionOverwrites.js

@@ -33,10 +33,11 @@ class PermissionOverwrites {
 
   /**
    * Delete this Permission Overwrite.
+   * @param {string} [reason] Reason for deleting this overwrite
    * @returns {Promise<PermissionOverwrites>}
    */
-  delete() {
-    return this.channel.client.rest.methods.deletePermissionOverwrites(this);
+  delete(reason) {
+    return this.channel.client.rest.methods.deletePermissionOverwrites(this, reason);
   }
 }