added vim opp and compiling for opp

.gitmodules

@@ -16,3 +16,6 @@
 [submodule "modules/prompt/functions/pure"]
 	path = modules/prompt/external/pure
 	url = https://github.com/sindresorhus/pure.git
+[submodule "modules/opp/external"]
+	path = modules/opp/external
+	url = https://github.com/hchbaw/opp.zsh.git

modules/opp/init.zsh

@@ -0,0 +1,20 @@
+# Vim's text-objects-ish for zsh.
+
+# Author: Takeshi Banse <takebi@laafc.net>
+# License: Public Domain
+
+# Thank you very much, Bram Moolenaar!
+# I want to use the Vim's text-objects in zsh.
+if [[ ! -f ${0:h}/functions/opp.zwc ]] ||
+   [[ ! -f ${0:h}/functions/opp-install.zwc ]]; then
+  (
+    . "${0:h}/external/opp.zsh"
+    . "${0:h}/external/opp/surround.zsh"
+    . "${0:h}/external/opp/textobj-between.zsh"
+    opp-zcompile "${0:h}/external/opp.zsh" ${0:h}/functions > /dev/null
+  )
+  fpath+=${0:h}/functions > /dev/null
+  . ${0:h}/functions/opp-install
+  autoload opp
+fi
+opp-install