* Scalar support marking data_type in yaml

* fix code-gene bug

* support intermediate for saprse api

* close intermediate in yaml

* fix dygraph_api dep for eager

* call sparse api from python

submanifold convolution

* support str attr in yaml

* fix bug

* suppport sparse api in yaml

* support auto-gen code of sparse api

* do some refactor

* add unittest test_sparse_conv_api

* add unitest file
Co-authored-by: Nzkh2016 <zhangkaihuo@baidu.com>