1. Provide method to create Parameter from Tensor without copy;
2. Adapt optimizer.py to support flattened parameters;
3. Add unit test cases for parameter and optimizer.

This reverts commit b077aa1cab.

Revert "[feat] [assistant] [I3T96X] add new Dataset operator LibriSpeechDataset"

This reverts commit 4e6f7dc97d.

delete pass_registry_test.cc

comment  hiai_nlu_model_multi.pb related  line

1. Parameter's init_data() should have no effect if default_input already set;
2. This bug is introduced by 'decouple ParamValue from python';
3. An unit test case is added to ensure the right init_data() behavior.

Signed-off-by: leonwanghui <leon.wanghui@huawei.com>