Add tufte-handout LaTeX class and org mode snippet

snippets/org-mode/tufte latex metadata

@@ -0,0 +1,10 @@
+# -*- mode: snippet -*-
+# name: tufte latex metadata
+# key: tufte
+# --
+#+TITLE: $0
+#+AUTHOR: Amin Kasrou Aouam
+#+LANGUAGE: es
+#+OPTIONS: toc:nil
+#+LATEX_CLASS: tufte-handout
+#+LATEX_CLASS_OPTIONS: [a4paper]