ISTWCMS-5724: adding social intents

src/patterns/04-components/social-intents/social-intents.md

+---
+el: .uw-social-intents
+title: Social Intents
+---
+
+__Variables:__
+* social-intents: [array] Variables for social-intents.
+    * username: [string] Social Intents username.
+    * uniqueid: [string] Unique id of the social-intents component.

src/patterns/04-components/social-intents/social-intents.twig

+<div id="uw-social-intents-{{ social_intents.uniqueid }}" class="uw-social-intents">
+  <div class="uw-social-intents__wrapper {{ width }}">
+    <iframe src="https://chat.socialintents.com/c/{{ social_intents.username }}" width="100%" height="540"></iframe>
+  </div>
+</div>

src/patterns/04-components/social-intents/social-intents.yml

+social-intents:
+  username: 'livechatsi'
+  uniqueid: '1111111'