APS Bid Adapter Initial Release

**Overview**
------------
APS (Amazon Publisher Services) bid adapter initial open source release.

**Changes**
-----------
- (docs) Integration guide

Author: bjoberg-amzn

dev-docs/aps.md

@@ -0,0 +1,57 @@
+---
+layout: bidder
+title: APS
+description: Prebid APS Bidder Adapter
+biddercode: aps
+tcfeu_supported: true
+dsa_supported: false
+gvl_id: 793
+usp_supported: true
+coppa_supported: true
+schain_supported: true
+media_types: display, video
+deals_supported: true
+floors_supported: true
+fpd_supported: true
+ortb_blocking_supported: true
+pbjs: true
+pbs: false
+prebid_member: true
+multiformat_supported: will-bid-on-any
+sidebarType: 1
+---
+
+### Bidder Config Params
+
+{: .table .table-bordered .table-striped }
+| Name | Scope | Description | Example | Type |
+|-----------------|----------|-----------------|---------------------------|----------|
+| `aps.accountID` | required | APS-provided ID | `1234` | `string` |
+| `aps.debugURL` | optional | Bid endpoint | `https://example.com/bid` | `string` |
+| `aps.debug` | optional | Toggle to enable / disable debug mode | `true` | `boolean` |
+| `aps.renderMethod` | optional | Debug mode render method | `fif` | `string` |
+| `aps.creativeURL` | optional | Creative rendering URL | `https://example.com/creative.js` | `string` |
+| `aps.telemetry` | optional | Toggle to enable / disable APS telemetry | `true` | `boolean` |
+
+### Bid Params
+
+None.
+
+## User Syncs
+
+If you'd like to activate user syncs through APS, you must activate iframe syncing.
+
+```
+window.pbjs.que.push(function () {
+  window.pbjs.setConfig({
+    userSync: {
+      filterSettings: {
+        iframe: {
+          bidders: ["aps"],
+          filter: "include",
+        },
+      },
+    },
+  });
+});
+```