[TASK] #230 Add data-nosnippet to the templates and the wrapper of the cookie optin

Resources/Private/Templates/Mustache/Template/Default.html

 <!--googleoff: index-->
-<div class="sg-cookie-optin-box">
+<div data-nosnippet class="sg-cookie-optin-box">
 	{{#settings.show_button_close}}
 		<span class="sg-cookie-optin-box-close-button">✕</span>
 	{{/settings.show_button_close}}

Resources/Private/Templates/Mustache/Template/Full.html

 <!--googleoff: index-->
-<div class="sg-cookie-optin-box sg-cookie-optin-box-new">
+<div data-nosnippet class="sg-cookie-optin-box sg-cookie-optin-box-new">
 	<div class="sg-cookie-optin-box-new-upper">
 		{{#settings.show_button_close}}
 			<span class="sg-cookie-optin-box-close-button">✕</span>

Resources/Public/JavaScript/cookieOptin.js

@@ -283,6 +283,7 @@ var SgCookieOptin = {
 		var fromBanner = typeof options == 'object' && options.fromBanner === true;
 
 		var wrapper = document.createElement('DIV');
+		wrapper.setAttribute('data-nosnippet', '');
 		wrapper.id = 'SgCookieOptin';
 
 		var forceBanner;