[Docs] Add header for files (#1181)

* [Docs] Add header for files

* change to OpenMMLab

* add headers for .cpp, .cu, .h, .cuh

* replace Open-MMLab with OpenMMLab

mmcv/ops/csrc/parrots/focal_loss.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include "pytorch_cpp_helper.hpp"
 
 #ifdef MMCV_WITH_CUDA

mmcv/ops/csrc/parrots/focal_loss_cuda.cu

+// Copyright (c) OpenMMLab. All rights reserved
 #include "pytorch_cuda_helper.hpp"
 #include "sigmoid_focal_loss_cuda_kernel.cuh"
 #include "softmax_focal_loss_cuda_kernel.cuh"

mmcv/ops/csrc/parrots/focal_loss_parrots.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include <parrots/compute/aten.hpp>
 #include <parrots/extension.hpp>
 #include <parrots/foundation/ssattrs.hpp>

mmcv/ops/csrc/parrots/focal_loss_pytorch.h

+// Copyright (c) OpenMMLab. All rights reserved
 #ifndef FOCAL_LOSS_PYTORCH_H
 #define FOCAL_LOSS_PYTORCH_H
 #include <torch/extension.h>

mmcv/ops/csrc/parrots/fused_bias_leakyrelu.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 // Modified from
 // from
 // https://github.com/rosinality/stylegan2-pytorch/blob/master/op/fused_bias_act.cpp

mmcv/ops/csrc/parrots/fused_bias_parrots.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include <torch/extension.h>
 
 #include <parrots/compute/aten.hpp>

mmcv/ops/csrc/parrots/masked_conv2d.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include "pytorch_cpp_helper.hpp"
 
 #ifdef MMCV_WITH_CUDA

mmcv/ops/csrc/parrots/masked_conv2d_cuda.cu

+// Copyright (c) OpenMMLab. All rights reserved
 #include "masked_conv2d_cuda_kernel.cuh"
 #include "pytorch_cuda_helper.hpp"
 

mmcv/ops/csrc/parrots/masked_conv2d_parrots.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include <parrots/compute/aten.hpp>
 #include <parrots/extension.hpp>
 #include <parrots/foundation/ssattrs.hpp>

mmcv/ops/csrc/parrots/masked_conv2d_pytorch.h

+// Copyright (c) OpenMMLab. All rights reserved
 #ifndef MASKED_CONV2D_PYTORCH_H
 #define MASKED_CONV2D_PYTORCH_H
 #include <torch/extension.h>

mmcv/ops/csrc/parrots/modulated_deform_conv.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include "pytorch_cpp_helper.hpp"
 
 #ifdef MMCV_WITH_CUDA

mmcv/ops/csrc/parrots/modulated_deform_conv_cuda.cu

+// Copyright (c) OpenMMLab. All rights reserved
 #include "modulated_deform_conv_cuda_kernel.cuh"
 #include "pytorch_cuda_helper.hpp"
 

mmcv/ops/csrc/parrots/modulated_deform_conv_parrots.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include <parrots/compute/aten.hpp>
 #include <parrots/extension.hpp>
 #include <parrots/foundation/ssattrs.hpp>

mmcv/ops/csrc/parrots/modulated_deform_conv_pytorch.h

+// Copyright (c) OpenMMLab. All rights reserved
 #ifndef MODULATED_DEFORM_CONV_PYTORCH_H
 #define MODULATED_DEFORM_CONV_PYTORCH_H
 #include <torch/extension.h>

mmcv/ops/csrc/parrots/ms_deform_attn_parrots.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include <torch/extension.h>
 
 #include <parrots/compute/aten.hpp>

mmcv/ops/csrc/parrots/nms.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include "pytorch_cpp_helper.hpp"
 
 #ifdef MMCV_WITH_CUDA

mmcv/ops/csrc/parrots/nms_cuda.cu

+// Copyright (c) OpenMMLab. All rights reserved
 #include "nms_cuda_kernel.cuh"
 #include "pytorch_cuda_helper.hpp"
 

mmcv/ops/csrc/parrots/nms_parrots.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 #include <parrots/compute/aten.hpp>
 #include <parrots/extension.hpp>
 #include <parrots/foundation/ssattrs.hpp>

mmcv/ops/csrc/parrots/nms_pytorch.h

+// Copyright (c) OpenMMLab. All rights reserved
 #ifndef NMS_PYTORCH_H
 #define NMS_PYTORCH_H
 #include <torch/extension.h>

mmcv/ops/csrc/parrots/psamask.cpp

+// Copyright (c) OpenMMLab. All rights reserved
 // Modified from
 // https://github.com/hszhao/semseg/blob/master/lib/psa/src
 #include "pytorch_cpp_helper.hpp"