feat: add vaadin lock icon

https://app.clickup.com/t/86b1nztyh

gulpfile.js

@@ -21,6 +21,7 @@ const cxlVaadinIconset = [
   'external-link.svg',
   'facebook.svg',
   'link.svg',
+  'lock.svg',
   'play-circle-o.svg',
   'quote-right.svg',
   'star.svg',

iconset.html

@@ -15,6 +15,7 @@
 <g id="external-link"><path d="M14 16v-11l-1 1v9h-12v-12h9l1-1h-11v14z"/><path d="M16 0h-5l1.8 1.8-6.8 6.8 1.4 1.4 6.8-6.8 1.8 1.8z"/></g>
 <g id="facebook"><path d="M7.2 16v-7.5h-2v-2.7h2c0 0 0-1.1 0-2.3 0-1.8 1.2-3.5 3.9-3.5 1.1 0 1.9 0.1 1.9 0.1l-0.1 2.5c0 0-0.8 0-1.7 0-1 0-1.1 0.4-1.1 1.2 0 0.6 0-1.3 0 2h2.9l-0.1 2.7h-2.8v7.5h-2.9z"/></g>
 <g id="link"><path d="M14.9 1.1c-1.4-1.4-3.7-1.4-5.1 0l-4.4 4.3c-1.4 1.5-1.4 3.7 0 5.2 0.1 0.1 0.3 0.2 0.4 0.3l1.5-1.5c-0.1-0.1-0.3-0.2-0.4-0.3-0.6-0.6-0.6-1.6 0-2.2l4.4-4.4c0.6-0.6 1.6-0.6 2.2 0s0.6 1.6 0 2.2l-1.3 1.3c0.4 0.8 0.5 1.7 0.4 2.5l2.3-2.3c1.5-1.4 1.5-3.7 0-5.1z"/><path d="M10.2 5.1l-1.5 1.5c0 0 0.3 0.2 0.4 0.3 0.6 0.6 0.6 1.6 0 2.2l-4.4 4.4c-0.6 0.6-1.6 0.6-2.2 0s-0.6-1.6 0-2.2l1.3-1.3c-0.4-0.8-0.1-1.3-0.4-2.5l-2.3 2.3c-1.4 1.4-1.4 3.7 0 5.1s3.7 1.4 5.1 0l4.4-4.4c1.4-1.4 1.4-3.7 0-5.1-0.2-0.1-0.4-0.3-0.4-0.3z"/></g>
+<g id="lock"><path d="M12 8v-3.1c0-2.2-1.6-3.9-3.8-3.9h-0.3c-2.1 0-3.9 1.7-3.9 3.9v3.1h-1l0.1 5c0 0-0.1 3 4.9 3s5-3 5-3v-5h-1zM9 14h-1v-2c-0.6 0-1-0.4-1-1s0.4-1 1-1 1 0.4 1 1v3zM10 8h-4v-3.1c0-1.1 0.9-1.9 1.9-1.9h0.3c1 0 1.8 0.8 1.8 1.9v3.1z"/></g>
 <g id="play-circle-o"><path d="M8 1c3.9 0 7 3.1 7 7s-3.1 7-7 7-7-3.1-7-7 3.1-7 7-7zM8 0c-4.4 0-8 3.6-8 8s3.6 8 8 8 8-3.6 8-8-3.6-8-8-8v0z"/><path d="M6 4v8l6-4z"/></g>
 <g id="quote-right"><path d="M9 9v-7h7v7.1c0 4.8-4.5 5.4-4.5 5.4l-0.6-1.4c0 0 2-0.3 2.4-1.9 0.4-1.2-0.4-2.2-0.4-2.2h-3.9z"/><path d="M0 9v-7h7v7.1c0 4.8-4.5 5.4-4.5 5.4l-0.6-1.4c0 0 2-0.3 2.4-1.9 0.4-1.2-0.4-2.2-0.4-2.2h-3.9z"/></g>
 <g id="star"><path d="M12.9 15.4l-4.9-2.6-4.9 2.6 0.9-5.4-4-3.9 5.5-0.8 2.4-5 2.4 5 5.5 0.8-3.8 3.9 0.9 5.4z"/></g>