feat (ari) add image with caption default template

Author: ptesei

config/image-sizes.js

@@ -36,7 +36,9 @@ let nbSizes = 0
  */
 function getTemplateFileNames() {
   return fs.readdirSync(dir.tpl).filter(function (tpl) {
-    return tpl !== 'default-picture.tpl'
+    if (tpl !== 'default-picture.tpl' && tpl !== 'default-picture-caption.tpl') {
+      return tpl
+    }
   })
 }
 

src/conf-img/tpl/default-picture-caption.tpl

@@ -0,0 +1,11 @@
+<noscript>
+    %%data-location%%
+    <img src="%%default_img%%" %%attributes%% />
+</noscript>
+<picture>
+    <!--[if IE 9]><video style="display: none"><![endif]-->
+    %%sources%%
+    <!--[if IE 9]></video><![endif]-->
+    <img %%srcgif%% %%attributes%%/>
+    <figcaption>%%caption%%</figcaption>
+</picture>