Add a tsan suppression file with OPENSSL_cleanse and use it in run_tests
diff --git a/tools/tsan_suppressions.txt b/tools/tsan_suppressions.txt
new file mode 100644
index 0000000..23d57f9
--- /dev/null
+++ b/tools/tsan_suppressions.txt
@@ -0,0 +1,2 @@
+# OPENSSL_cleanse does racy access to a global
+race:OPENSSL_cleanse