scripts: add fuzzer helper script

scripts/fuzz.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+CWD="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"
+PROJECT_DIR=$(realpath "${CWD}/../")
+
+in=$(mktemp -u) || exit $?
+out=$(mktemp -u) || exit $?
+
+mkfifo ${in} ${out} || exit $?
+
+${PROJECT_DIR}/scripts/atom.py <${in} >${out} \
+    | ${PROJECT_DIR}/build/fuzz/atom/parser/fuzzer >${in} <${out} \
+                                      ${PROJECT_DIR}/build/atom_parser_fuzzer_corpus \
+                                      -only_ascii=1 \
+                                      "$@"