pass json attribute through

Author: tcreamer1

ads/vendors/playwire.js

@@ -7,7 +7,7 @@ import { loadScript, validateData, computeInMasterFrame } from '#3p/3p';
 export function playwire(global, data) {
   /*eslint "local/camelcase": 0*/
   global.playwire = {
-    allowed_data: ['publisher', 'website', 'slot', 'path', 'slotNumber'],
+    allowed_data: ['publisher', 'website', 'slot', 'path', 'slotNumber', 'json'],
     mandatory_data: ['publisher', 'website', 'slot'],
     isAmp: true,
     data,

ads/vendors/playwire.md

@@ -15,3 +15,7 @@ Each site must be approved and onboarded with Playwire prior to launch. Please v
 -   `data-publisher` - The Playwire publisher ID assigned to the property.
 -   `data-website` - The website ID associated with the property.
 -   `data-slot` - The Playwire slot identifier corresponding to the ad unit.
+
+### Optional parameters
+
+-   `data-json` - JSON object to configure additional settings. Refer to Playwire documentation for supported options.