Add a fuzzer for hashbrown's HashSet. am: 51db815d4b am: 2e264cbcba am: 9af23a2b7f

Original change: https://android-review.googlesource.com/c/platform/tools/security/+/1869726

Change-Id: I7e5061368cd71d95927468ea1d9db7f6be66195a
tree: f7b7100f4f21e7092b6bfc52dd536745fc6203c0
  1. fuzzing/
  2. gdb/
  3. remote_provisioning/
  4. sanitizer-status/
  5. CleanSpec.mk
  6. OWNERS