Merge changes I7faabafc,Id71244c5

* changes:
  Relax the tolerable range for quant and boolean values.
  Add RandomOperand flags: doNotCheckAccuracy and doNotConnect.
tree: 88e89654ff30e0ff258aee7eb71dc7fe366493fd
  1. nn/
  2. .clang-format
  3. CleanSpec.mk
  4. OWNERS
  5. PREUPLOAD.cfg