Adds CUDA support (identical to C++)

autoload/tagbar.vim

@@ -237,6 +237,7 @@ function! s:InitTypes() abort
         \ 'union'     : 'u'
     \ }
     let s:known_types.cpp = type_cpp
+    let s:known_types.cuda = type_cpp
     " C# {{{3
     let type_cs = s:TypeInfo.New()
     let type_cs.ctagstype = 'c#'