[emacs] Add snippets for latex mode.

.emacs.d/snippets/latex-mode/frame.yasnippet

@@ -0,0 +1,9 @@
+# -*- mode: snippet -*-
+# contributor: Claudio Marforio <marforio@gmail.com> 
+# key: frame
+# group: environments
+# name : \begin{frame} ... \end{frame}
+# --
+\begin{frame}{${1:Frame Title}}
+
+\end{frame}