N/A
Signed-off-by: NLuxuhui <luxuhui@xiaomi.com>

N/A
Signed-off-by: NLuxuhui <luxuhui@xiaomi.com>

1. Auto transformation between data format, data type and memory type.
2. Add device placement optimization strategy.

1. Remove data_format flag for ambiguous
2. add has_data_format for distinguish models without data format.

1. Add registration of Op conditions.
2. Add data format for ops based on model's input data format.

1. Support memory optimization at runtime
2. Support memory type transformation automatically at runtime.
3. Move gpu winograd convolution to Conv2D.
4. Support Data Type transformation automatically.
5. MaceTensor API support optional data type.
6. Add input_data_formats and output_data_formats at yaml
7. Related issue(#363)

1. Move all files in kernels to ops
2. unify the op_def_registry and op_registry.
3. Support op clip: do not link the ops' code when the op is not registered.

1. Merge the Operation and OpKernel into Operation.
2. Add OpDefRegistry for registering the definitions of Operations.
3. Add information for MaceStatus.
4. Unify 'BatchNorm' and 'FoldedBatchNorm' into 'BatchNorm'
5. Remove unused op 'Proposal'