[Autoflow] Add SCSS files

Merge in SCSS files and platform markup which supports
autoflow tabular views for WTD-611 into the open-source-friendly
master branch.

platform/commonUI/general/res/sass/forms.scss

@@ -0,0 +1,16 @@
+@import "compass";
+@import "compass/css3";
+@import "compass/css3/border-radius";
+@import "compass/css3/opacity";
+@import "compass/utilities";
+
+@import "constants";
+@import "mixins";
+@import "forms/mixins";
+@import "forms/elems";
+@import "forms/textarea";
+@import "forms/text-input";
+@import "forms/selects";
+@import "forms/channel-selector";
+@import "forms/datetime";
+//@import "forms/filter";