lint: Add disabled clang-format linter

A follow-up patch will enable the linter and run clang-format on the
entire repo. You'll be able to run it in one of two ways:

    $ bazel run //tools/lint:clang_format

and, along with all the other linters once its enabled:

    $ bazel run //tools/lint:run-ci

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I1dab4e682096826ee57d70f8c82662d9c2c33217
diff --git a/tools/lint/run-ci.sh b/tools/lint/run-ci.sh
index 6e026ee..1f5fda4 100755
--- a/tools/lint/run-ci.sh
+++ b/tools/lint/run-ci.sh
@@ -23,6 +23,10 @@
     export GOCACHE=/tmp/lint_go_cache
 fi
 
+clang_format() {
+    ./tools/lint/clang_format
+}
+
 gofmt() {
     ./tools/lint/gofmt
 }
@@ -110,6 +114,7 @@
 
 # All the linters that we are going to run.
 readonly -a LINTERS=(
+    #clang_format
     gofmt
     gomod
     update_go_repos