add assign,equal,fill_constant_batch_size_like,range,reduce_prod,cond…  … …itional_block cpu op (#1783)

* add assign,equal,fill_constant_batch_size_like,range,reduce_prod,conditional_block cpu op

* 1.fix roi_perspective_transform,lod_reset,multiclass_nms,slice,while op
2.elementwise_add compute support int input
3.scale compute support int64_t input

* support group conv in opencl

* fix style

* 1.add slice, exp, leakyrelu, nearest op placeholder. 2.complete slice and exp op. 3.fix sigmoid op.

* fix style

* add CPU_ARCH info, improve the performance of GEMM1*1s1

* improve the performance of gemm1*1s1_conv_add and gemm1*1s1_conv_add_bn_relu

* improve the performance of slidingwindow_bn_relu,slidingwindow_add,slidingwindow_add_bn_relu,gemm1*1s1_bn_relu,gemm1*1s1_add_relu

* add faster sgemv_notrans_mx1, fix test_fusion_op

* add slice cpu op

* print error var name && print op position

* add exp cpu

* add exp cpu

* add comment

* add comment

* add comment

* add CPU_ARCH info, improve the performance of GEMM1*1s1

* improve the performance of gemm1*1s1_conv_add and gemm1*1s1_conv_add_bn_relu

* improve the performance of slidingwindow_bn_relu,slidingwindow_add,slidingwindow_add_bn_relu,gemm1*1s1_bn_relu,gemm1*1s1_add_relu

* prune faster depthwise

* fix style

* add faster depthwise implementations

* fix style

* add gemm_int8 arm64 version without openmp

* add gemm_int8 arm64 version with openmp

* update concat and split kernel and related files in FPGA v2(v3) track

* update

* update

* update kernel and related files in FPGA v2 track

* update

* update

* update kernel and related files for static quantization in FPGA v2 track

* update

* update feed and fetch kernel in FPGA v2 track

* update io file

* update feed fetch and softmax kernel in FPGA v2 track

* update proposal kernel and other kernels in FPGA v2 track

* update fetch and softmax kernel in fpga v2 track

* update v1 and v3 kernel file in FPGA track

* update concat and split kernel and related files in FPGA v2(v3) track

* update

* update

* update kernel and related files in FPGA v2 track

* update

* update

* update kernel and related files for static quantization in FPGA v2 track

* update

* update feed and fetch kernel in FPGA v2 track

* update io file

* update feed fetch and softmax kernel in FPGA v2 track

* update proposal kernel and other kernels in FPGA v2 track

* update fetch and softmax kernel in fpga v2 track

* marker1-anchor update

* concat-fetch bug

* update concat and split kernel and related files in FPGA v2(v3) track

* update

* update

* update kernel and related files in FPGA v2 track

* update

* update

* update kernel and related files for static quantization in FPGA v2 track

* update

* update feed and fetch kernel in FPGA v2 track

* update io file

* update feed fetch and softmax kernel in FPGA v2 track

* update proposal kernel and other kernels in FPGA v2 track

* add reshape2, transpose2, split GPU operator

* fix reshape2op && delete log

1.update CPUContext to probe CPU info 2.improve the performance of SlidingwindowConv3x3s1 and SlidingwindowConv3x3s2 (#1655)