[Refactor] Refactor the directory of csrc (#1206)

* [Refactor] Refactor the csrc directory

* update MANIFEST.in

* fix hip

* add csrc readme

* trailing whitespace

* fix syntax error in setup.py

* add compatibility docs

* move parrots_cudawarpfunction.cuh to common/cuda

* fix grammar, update directory tree

* fix MANIFEST.in

* Add new structre of csrc in compatibility.md

* Add original structre of csrc in compatibility.md

* fix typo

* remove TODO

* modify according to comment

* format
Co-authored-by: grimoire <yaoqian@sensetime.com>

mmcv/ops/csrc/pytorch/ms_deform_attn_cuda.cu → mmcv/ops/csrc/pytorch/cuda/ms_deform_attn_cuda.cu

@@ -15,9 +15,10 @@
 #include <cuda_runtime.h>
 
 #include <THC/THCAtomics.cuh>
-#include <ms_deform_attn_cuda_kernel.cuh>
 #include <vector>
 
+#include "ms_deform_attn_cuda_kernel.cuh"
+
 template <typename scalar_t>
 void ms_deformable_im2col_cuda(cudaStream_t stream, const scalar_t *data_value,
                                const int64_t *data_spatial_shapes,