addStellormedia allias (#5763)

* addStellormedia allias

* fix style

* fix review issue

---------

Co-authored-by: VadymShatov <v.shatov@adtelligent.com>

Author: Gunnar97

dev-docs/bidders/stellormedia.md

@@ -0,0 +1,89 @@
+---
+layout: bidder
+title: StellorMedia
+description: Stellor Media Bidder Adapter
+biddercode: stellormedia
+aliasCode: adtelligent
+media_types: video,banner
+tcfeu_supported: false
+gpp_sids: usp
+userId: all (with commercial activation)
+schain_supported: true
+coppa_supported: true
+usp_supported: true
+safeframes_ok: true
+prebid_member: false
+pbjs: true
+pbs: false
+deals_supported: false
+sidebarType: 1
+---
+
+### Bid params
+
+{: .table .table-bordered .table-striped }
+| Name | Scope | Description | Example | Type |
+|-------|----------|---------------------------------|----------|-----------|
+| `aid` | required | The source ID from Stellor Media. | `12412` | `integer` |
+
+### Description
+
+Stellor Media header bidding adapter connects with Indicue Media demand sources in order to fetch bids.
+This adapter provides a solution for accessing Video demand and display demand.
+
+### Test Parameters
+
+```javascript
+    var adUnits = [
+
+      // Video instream adUnit
+      {
+        code: 'test-div',
+        mediaTypes: {
+          video: {
+            context: 'instream',
+            playerSize: [640, 480]
+          }
+        },
+        bids: [{
+          bidder: 'stellormedia',
+          params: {
+            aid: 472386
+          }
+        }]
+      },
+
+      // Video outstream adUnit
+      {
+        code: 'test-div',
+        mediaTypes: {
+          video: {
+            context: 'outstream',
+            playerSize: [640, 480]
+          }
+        },
+        bids: [{
+          bidder: 'stellormedia',
+          params: {
+            aid: 472386
+          }
+        }]
+      },
+
+      // Banner adUnit
+      {
+        code: 'test-div',
+        mediaTypes:{
+            banner:{
+                sizes: [[300, 250]]
+            }
+        }
+        bids: [{
+          bidder: 'stellormedia',
+          params: {
+            aid: 529814
+          }
+        }]
+      }
+    ];
+```