* conv_bias_mkldnn_fuse_pass_tester rewritten

* conv_concat_relu_mkldnn_fuse_pass_tester rewritten

* conv_elementwise_add_fuse_pass_tester rewritten

* mkldnn changed to onednn

* tests added to cmakeLists, style fix

* got rid of unnecessary UT, some style changes

* changes in naming convention

* max_examples reduced

* time out added