add sass/scratch.scss and associated sass files

Resources/public/sass/contrib/bourbon/addons/_margin.scss

@@ -0,0 +1,26 @@
+@charset "UTF-8";
+
+/// Provides a quick method for targeting `margin` on specific sides of a box. Use a `null` value to “skip” a side.
+///
+/// @param {Arglist} $vals
+///   List of arguments
+///
+/// @example scss - Usage
+///   .element {
+///     @include margin(null 10px 3em 20vh);
+///   }
+///
+/// @example css - CSS Output
+///   .element {
+///     margin-bottom: 3em;
+///     margin-left: 20vh;
+///     margin-right: 10px;
+///   }
+///
+/// @require {mixin} directional-property
+///
+/// @output `margin`
+
+@mixin margin($vals...) {
+  @include directional-property(margin, false, $vals...);
+}