add spelling check script

Author: islinwb

hack/.spelling_failures

@@ -0,0 +1,4 @@
+BUILD
+OWNERS
+third_party/
+vendor/

hack/verify-spelling.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+# Copyright 2018 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+export KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
+# Ensure that we find the binaries we build before anything else.
+export GOBIN="${KUBE_OUTPUT_BINPATH}"
+PATH="${GOBIN}:${PATH}"
+
+# Install tools we need, but only from vendor/...
+go install github.com/kubernetes-sigs/poseidon/vendor/github.com/client9/misspell/cmd/misspell
+
+# Spell checking
+# All the skipping files are defined in hack/.spelling_failures
+skipping_file="${KUBE_ROOT}/hack/.spelling_failures"
+failing_packages=$(echo `cat ${skipping_file}` | sed "s| | -e |g")
+git ls-files | grep -v -e ${failing_packages} | xargs misspell -i "Creater,creater,ect" -error -o stderr