Implement a full-screen widget #112

-Added studio sidebar widget. Empty now, will be filled later

src/main/resources/admin/widgets/guillotine/guillotine.html

@@ -0,0 +1,3 @@
+<widget id="widget-guillotine" style="display: flex;justify-content: center;">
+    Welcome to Guillotine application!
+</widget>

src/main/resources/admin/widgets/guillotine/guillotine.js

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+const mustache = require('/lib/mustache');
+
+function handleGet() {
+    const view = resolve('./guillotine.html');
+    const params = {
+    //
+    };
+
+    return {
+        contentType: 'text/html',
+        body: mustache.render(view, params),
+    };
+}
+
+exports.get = handleGet;

src/main/resources/admin/widgets/guillotine/guillotine.xml

@@ -0,0 +1,7 @@
+<widget xmlns="urn:enonic:xp:model:1.0">
+  <display-name>Guillotine</display-name>
+  <description>Generate a dynamic GraphQL API</description>
+  <interfaces>
+    <interface>contentstudio.sidebar</interface>
+  </interfaces>
+</widget>