add font-format option for font-face mixin

Author: Karlasa

lib/web/css/source/lib/_typography.less

@@ -10,10 +10,11 @@
 .lib-font-face(
     @family-name,
     @font-path,
+    @font-format: false,
     @font-weight: normal,
     @font-style: normal,
     @font-display: auto
-) {
+) when (@font-format = false) {
     @font-face {
         font-family: @family-name;
         src: url('@{font-path}.woff2') format('woff2'),
@@ -24,6 +25,23 @@
     }
 }
 
+.lib-font-face(
+    @family-name,
+    @font-path,
+    @font-format: false,
+    @font-weight: normal,
+    @font-style: normal,
+    @font-display: auto
+) when not (@font-format = false) {
+    @font-face {
+        font-family: @family-name;
+        src: url('@{font-path}.@{font-format}') format(@font-format);
+        font-weight: @font-weight;
+        font-style: @font-style;
+        font-display: @font-display;
+    }
+}
+
 //  Rem font size
 .lib-font-size(@sizeValue) when not (ispercentage(@sizeValue)) and not (@sizeValue = false) and (isunit(@sizeValue, @font-size-unit)) {
     .lib-css(font-size, @sizeValue);