added ci scripts for rust

ci/run-rustfmt.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+ERROR=0
+
+while IFS= read -r -d '' f; do
+  echo "${f}"
+
+  if  [ "$(rustfmt --write-mode=diff "$f")" != $'' ]  ; then
+      ERROR=1
+  fi
+done < <(find . -type f -name '*.rs' -print0)
+
+exit ${ERROR}