general: add MuseoModerno font (#78420)

README

@@ -437,6 +437,13 @@ copyright notices:
   #
   # https://www.fontsquirrel.com/license/public-sans
 
+* MuseoModerno
+  # Copyright (c) 2020, Omnibus-Type (www.omnibus-type.com|omnibus.type@gmail.com).
+  #
+  # This Font Software is licensed under the SIL Open Font License, Version 1.1.
+  #
+  # https://github.com/Omnibus-Type/MuseoModerno/blob/master/LICENSE.md
+
 ~~~~
 
 Some theme variant files have their own specific licenses; refer to

static/includes/fonts/_museomoderno.scss

@@ -0,0 +1,24 @@
+$museomoderno-font-path: '/static/fonts/MuseoModerno' !default;
+
+@mixin museomoderno-font($type, $weight, $style: normal) {
+    @font-face {
+        font-family: 'MuseoModerno';
+        src: url('#{$museomoderno-font-path}/MuseoModerno-#{$type}.woff2') format('woff2');
+        font-weight: $weight;
+        font-style: $style;
+    }
+}
+
+@mixin museomoderno-font-pair($type, $weight) {
+    @include museomoderno-font($type, $weight);
+    @include museomoderno-font(#{$type}Italic, $weight, italic);
+}
+
+@include museomoderno-font-pair('Thin', 100);
+@include museomoderno-font-pair('ExtraLight', 200);
+@include museomoderno-font-pair('Light', 300);
+@include museomoderno-font-pair('Regular', 400);
+@include museomoderno-font-pair('Medium', 500);
+@include museomoderno-font-pair('SemiBold', 600);
+@include museomoderno-font-pair('Bold', 700);
+@include museomoderno-font-pair('Black', 900);