New adapter clickio (prebid#6463)

* New adapter clickio

* Remove unnecessary blank line in Clickio adapter documentation

* Update Clickio adapter documentation to replace gpp_supported with gpp_sids field

* Remove gdpr_supported field from Clickio adapter documentation

* Lint errors fix

Author: ClickioTech

dev-docs/bidders/clickio.md

@@ -0,0 +1,36 @@
+---
+layout: bidder
+title: Clickio
+description: Clickio Bidder Adapter
+biddercode: clickio
+pbjs: true
+pbs: false
+gvl_id: 1500
+tcfeu_supported: true
+usp_supported: true
+gpp_sids: tcfeu, usnat
+coppa_supported: true
+schain_supported: true
+userId: all
+media_types: banner
+floors_supported: true
+safeframes_ok: true
+multiformat_supported: will-bid-on-one
+ortb_blocking_supported: false
+privacy_sandbox: no
+prebid_member: false
+sidebarType: 1
+---
+
+## Note
+
+The Clickio bid adapter connects to Clickio's demand platform using OpenRTB 2.5 standard. This adapter supports banner advertising.
+
+The Clickio bidding adapter requires initial setup before use. Please contact us at [support@clickio.com](mailto:support@clickio.com).
+To get started, simply replace the ``said`` with the ID assigned to you.
+
+## Bid Params
+
+| Name   | Scope    | Description  | Example   | Type     |
+|--------|----------|--------------|-----------|----------|
+| `said` | required | Site Area ID | `'11111'` | `string` |