[gtk+] HighContrast: Restore files to regenerate CSS

[Daniel Boles <dboles src gnome org>]

commit fc96fce4624b7a50a395fb17831126350754c783
Author: Daniel Boles <dboles src gnome org>
Date:   Wed May 31 08:14:26 2017 +0100

    HighContrast: Restore files to regenerate CSS
    
    I think parse-sass.sh needs updated to match what Adwaita does now, but
    for now, this is sufficient to let us regenerate HighContrast again.

 gtk/theme/HighContrast/Gemfile       |    2 ++
 gtk/theme/HighContrast/parse-sass.sh |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gtk/theme/HighContrast/Gemfile b/gtk/theme/HighContrast/Gemfile
new file mode 100644
index 0000000..56af69e
--- /dev/null
+++ b/gtk/theme/HighContrast/Gemfile
@@ -0,0 +1,2 @@
+source 'https://rubygems.org'
+gem "sass", "~> 3.4.0"
diff --git a/gtk/theme/HighContrast/parse-sass.sh b/gtk/theme/HighContrast/parse-sass.sh
new file mode 100755
index 0000000..e385f83
--- /dev/null
+++ b/gtk/theme/HighContrast/parse-sass.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+bundle exec sass --update --sourcemap=none .