add vendoring with go dep

vendor/github.com/vmware/govmomi/govc/build.sh

@@ -0,0 +1,34 @@
+#!/bin/bash -e
+
+git_version=$(git describe)
+if git_status=$(git status --porcelain 2>/dev/null) && [ -n "${git_status}" ]; then
+  git_version="${git_version}-dirty"
+fi
+
+ldflags="-X github.com/vmware/govmomi/govc/version.gitVersion=${git_version}"
+
+BUILD_OS=${BUILD_OS:-darwin linux windows freebsd}
+BUILD_ARCH=${BUILD_ARCH:-386 amd64}
+
+for os in ${BUILD_OS}; do
+  export GOOS="${os}"
+  for arch in ${BUILD_ARCH}; do
+    export GOARCH="${arch}"
+
+    out="govc_${os}_${arch}"
+    if [ "${os}" == "windows" ]; then
+      out="${out}.exe"
+    fi
+
+    set -x
+    go build \
+      -o="${out}" \
+      -pkgdir="./_pkg" \
+      -compiler='gc' \
+      -ldflags="${ldflags}" \
+      github.com/vmware/govmomi/govc &
+    set +x
+  done
+done
+
+wait