Temporarily remove Hugo Pipes Sass conversion (#10373)

* Add new Sass generation system

* Remove resources folder

* Add develop Sass command and sourcemaps

* Add Hugo version shortcode for use in docs

* Add OWNERS file to ./sass folder

sass/case-study-styles.sass

@@ -0,0 +1,9 @@
+
+@import "reset"
+@import "skin"
+
+// media queries
+@import "base"
+@import "case-studies"
+@import "tablet"
+@import "desktop"