Add same_shape case for BiasDropout (#9188)
* bias dropout improvement
* add transform case for same shape case
* combine kernel
* merge with vectorized kernel
* use "has_same_shape_bias"
* minor: a "N % 4 != 0" case
* add op UT for has_same_shape_bias
* address comments; add param case for 1d bias;
add param case tests for 1d and same-shape bias
* rewrite logic condition
Co-authored-by: Peng Wang <pengwa@microsoft.com>
