Add a fuzzer for hashbrown's HashSet. am: 51db815d4b

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

Change-Id: Id0202d177c9a90de4a663556c2dae203643d5739
tree: f7b7100f4f21e7092b6bfc52dd536745fc6203c0
  1. fuzzing/
  2. gdb/
  3. remote_provisioning/
  4. sanitizer-status/
  5. CleanSpec.mk
  6. OWNERS