refactor structure of python scripts

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

remove identity in-out reshape op in converter

1. Use uint32_t for average pooling.
2. Fix destruct command queue bug.

* Integrate APU

* fix code style issue

Summary: Reformat fp16 gemv, add FP16_MATMUL_WEIGHT

Differential Revision: https://phabricator.d.xiaomi.net/D144134

1. Change DataFormat from enum to enum class.

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

add extract pooling and kaldi batchnorm

add time index info in extract pooling

add benchmar& test for kaldi components

add batch support for kaldi

change ifdefined to delay

support kaldi tdnn-lstm

support logsoftmax

add ifdefined op

add dynamic lstm docs

1. Support int32 input data type.
2. Support GatherV2 op
3. Add transpose to ExpandDim op.