AC-667: Create phpcs static check for EmailTemplateTest

Author: jcuerdo

Magento2/Tests/Legacy/EmailTemplateUnitTest.1.html

@@ -1,3 +1,4 @@
 <h1>{{var "H1"}}</h1>
 <h2>{{var "H2"}}</h2>
 <p>{{var "p"}} {{var "p"}}</p>
+

Magento2/Tests/Legacy/EmailTemplateUnitTest.2.html

@@ -1,4 +1,4 @@
 <h1>{{htmlescape "H1"}}</h1>
 <h2>{{escapehtml "H2"}}</h2>
 <p>{{escapehtml "p"}} {{htmlescape "p"}}</p>
-<p class="greeting">{{trans "Translateme"}}</p>
+<p class="greeting">{{trans "Translateme"}}</p>