[vacri]

https://github.com/lukesdm/little-braces looks like the one.

[seanmcdirmid]

Also see this fork/port to VS2013:

https://github.com/owen2/little-braces

Also, it is available from the online add-in manager if you search for "little braces." The VS2013 community edition is just in time :)

I couple it with the indent guideline plugin for best effect (braces are super small, light lines to track indent level, 2 space indent...).