Add excoBidAdapter and corresponding tests (#12317)

Introduce the excoBidAdapter for handling bid requests and responses, including support for banner and video media types. Implement unit tests to validate the functionality and ensure proper integration with the prebid framework.

modules/excoBidAdapter.js

@@ -0,0 +1,37 @@
+import {registerBidder} from '../src/adapters/bidderFactory.js';
+import {BANNER, VIDEO} from '../src/mediaTypes.js';
+import {getStorageManager} from '../src/storageManager.js';
+import {
+  isBidRequestValid, createUserSyncGetter, createInterpretResponseFn, createBuildRequestsFn
+} from '../libraries/vidazooUtils/bidderUtils.js';
+
+const DEFAULT_SUB_DOMAIN = 'rtb';
+const BIDDER_CODE = 'exco';
+const BIDDER_VERSION = '1.0.0';
+const GVLID = 444;
+export const storage = getStorageManager({bidderCode: BIDDER_CODE});
+
+export function createDomain(subDomain = DEFAULT_SUB_DOMAIN) {
+  return `https://${subDomain}.exco-pb.com`;
+}
+
+const buildRequests = createBuildRequestsFn(createDomain, null, storage, BIDDER_CODE, BIDDER_VERSION, false);
+
+const interpretResponse = createInterpretResponseFn(BIDDER_CODE, false);
+
+const getUserSyncs = createUserSyncGetter({
+  iframeSyncUrl: 'https://cs.exco-pb.com/api/sync/iframe', imageSyncUrl: 'https://cs.exco-pb.com/api/sync/image'
+});
+
+export const spec = {
+  code: BIDDER_CODE,
+  version: BIDDER_VERSION,
+  supportedMediaTypes: [BANNER, VIDEO],
+  gvlid: GVLID,
+  isBidRequestValid,
+  buildRequests,
+  interpretResponse,
+  getUserSyncs
+};
+
+registerBidder(spec);

modules/excoBidAdapter.md

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+# Overview
+
+**Module Name:** Exco Bid Adapter
+
+**Module Type:** Bidder Adapter
+
+**Maintainer:** [email protected]
+
+# Description
+
+Module that connects to Exco's demand sources.
+
+# Test Parameters
+  ```js
+var adUnits = [
+  {
+    code: 'test-ad',
+    sizes: [[300, 250]],
+    bids: [
+      {
+        bidder: 'exco',
+        params: {
+          cId: '562524b21b1c1f08117fc7f9',
+          pId: '59ac17c192832d0011283fe3',
+          bidFloor: 0.0001,
+          ext: {
+            param1: 'loremipsum',
+            param2: 'dolorsitamet'
+          }
+        }
+      }
+    ]
+  }
+];
+```