add the repeat vim plugin

Mostly to use with surround.

.gitmodules

@@ -34,3 +34,6 @@
 [submodule "vim/bundle/ackmore"]
 	path = vim/bundle/ackmore
 	url = https://github.com/jordansissel/vim-ackmore.git
+[submodule "vim/bundle/repeat"]
+	path = vim/bundle/repeat
+	url = https://github.com/tpope/vim-repeat.git

vim/bundle/repeat

@@ -0,0 +1 @@
+Subproject commit d75a544b786710705f0db0d8d8fd66ca4a5a7239