Rename bulma folder to sass

sass/base/helpers.sass

@@ -0,0 +1,63 @@
+// Display
+
+.is-flex
+  display: flex
+
+// Float
+
+.is-clearfix
+  +clearfix
+
+.is-pulled-left
+  float: left
+
+.is-pulled-right
+  float: right
+
+// Overlay
+
+.is-overlay
+  +overlay
+
+// Text
+
+.has-text-centered
+  text-align: center
+
+.has-text-left
+  text-align: left
+
+.has-text-right
+  text-align: right
+
+// Visibility
+
+.is-hidden
+  display: none !important
+
+.is-hidden-mobile
+  +mobile
+    display: none !important
+
+.is-hidden-tablet
+  +tablet
+    display: none !important
+
+.is-hidden-touch
+  +touch
+    display: none !important
+
+.is-hidden-desktop
+  +desktop
+    display: none !important
+
+// Other
+
+.is-disabled
+  pointer-events: none
+
+.is-marginless
+  margin: 0 !important
+
+.is-unselectable
+  +unselectable