Spu

- [API] Add IR type for frontend compilation
- [Feature] Support SignOp, Expm1Op, DotGeneralOp
- [Feature] Improve convolution performance
- [Feature] Link Send/Recv python binding
- [bugfix] Relax iota type constraint
- [bugfix] Fix type inference for whileOp/dynamicUpdateSliceOp
- [bugfix] Relax clamp type constraint
- [bugfix] Fix NotOp with non-pred integer types

20220905

- [bugfix] Fix Tensorflow example
- [miscs] Performance improvements

20220822

- [Feature] Add compiler cache
- [Feature] Support bc22-pcg psi
- [API] Refactor psi api
- [miscs] Various performance improvements

20220727

- [API] Added rsqrt support
- [bugfix] Fixed some crashes and wrong answers

20220527

- [API] Add exp/log approximation configurations.
- [API] Change SigmoidMode enum value.

20220513

- [SPU] 0.0.10
- [Infra] Set minimum macOS requirements to 11.0
- [Feature] Performance improvements
- [Feature] Support SelectAndScatter.

20220511

- [Feature] Add spu.binding.distributed.
- [API] Expose visibility to ValueProto.
- [bugfix] Fixed several vtype and dtype mismatches.
- [bugfix] Improve multiply accuracy under certain scenarios.
- [bugfix] Ensure dynamic-slice & dynamic-update-slice OOB behavior is aligned with XLA semantics.

20220427