New Adapter: Streamlyn (#5579)

* Doc for embi media

* Add new adapter Streamlyn

* Fix formatting

* Remove unused

---------

Co-authored-by: apykhteyev <alex@project-limelight.com>

dev-docs/bidders/streamlyn.md

@@ -0,0 +1,39 @@
+---
+layout: bidder
+title: Streamlyn
+description: Streamlyn Bidder Adaptor
+biddercode: streamlyn
+pbjs: false
+pbs: true
+media_types: video, banner, audio, native
+userIds: all
+fpd_supported: false
+tcfeu_supported: false
+usp_supported: true
+coppa_supported: true
+schain_supported: true
+prebid_member: false
+ortb_blocking_supported: true
+multiformat_supported: will-bid-on-one
+floors_supported: false
+aliasCode: limelightDigital
+sidebarType: 1
+---
+
+### Bid Params
+
+{: .table .table-bordered .table-striped }
+
+| Name          | Scope    | Description              | Example                  | Type     |
+|:--------------|:---------|:-------------------------|:-------------------------|:---------|
+| `host`        | required | Ad network's RTB host    | `'rtba.bidsxchange.com'` | `string` |
+| `publisherId` | required | Publisher ID             | `'12345'`                | `string` |
+| `custom1`     | optional | Custom targeting field 1 | `'custom1'`              | `string` |
+| `custom2`     | optional | Custom targeting field 2 | `'custom2'`              | `string` |
+| `custom3`     | optional | Custom targeting field 3 | `'custom3'`              | `string` |
+| `custom4`     | optional | Custom targeting field 4 | `'custom4'`              | `string` |
+| `custom5`     | optional | Custom targeting field 5 | `'custom5'`              | `string` |
+
+Streamlyn server-side Prebid Server adapter requires only `publisherId` and `host` parameters.
+
+Streamlyn server-side Prebid Server adapter supports only `banner`, `video`, `audio`, `native` media types.