Adds plugin for question box.

client/coral-embed-stream/src/Embed.js

@@ -112,6 +112,10 @@ class Embed extends Component {
                      content={asset.settings.infoBoxContent}
                      enable={asset.settings.infoBoxEnable}
                    />
+                   <QuestionBox
+                     content={asset.settings.questionBoxContent}
+                     enable={asset.settings.questionBoxEnable}
+                   />
                  <RestrictedContent restricted={banned} restrictedComp={
                      <SuspendedAccount
                        canEditName={user && user.canEditName}

client/coral-plugin-questionbox/QuestionBox.js

@@ -0,0 +1,10 @@
+import React from 'react';
+const packagename = 'coral-plugin-questionbox';
+
+const QuestionBox = ({enable, content}) =>
+<div
+  className={`${packagename}-info ${enable ? null : ', hidden'}` }>
+  {content}
+</div>;
+
+export default QuestionBox;

models/setting.js

@@ -28,6 +28,14 @@ const SettingSchema = new Schema({
     type: String,
     default: ''
   },
+  questionBoxEnable: {
+    type: Boolean,
+    default: false
+  },
+  questionBoxContent: {
+    type: String,
+    default: ''
+  },
   organizationName: {
     type: String
   },