Update packages/yasnippet by subtree-merging from its github-based upstream

[gnu-emacs-elpa] / packages / yasnippet / snippets / csharp-mode / namespace

# contributor: Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
# name: namespace .. { ... }
# key: namespace
# --
namespace $1
{
$0
}