Update README.md and release models (#44)

* Update README.md

* update configs

* clean code

* support InternImage-H/G

segmentation/ops_dcnv3/modules/dcnv3.py

@@ -187,6 +187,7 @@ class DCNv3_pytorch(nn.Module):
         N, H, W, _ = input.shape
 
         x = self.input_proj(input)
+        x_proj = x
 
         x1 = input.permute(0, 3, 1, 2)
         x1 = self.dw_conv(x1)
@@ -313,6 +314,7 @@ class DCNv3(nn.Module):
         N, H, W, _ = input.shape
 
         x = self.input_proj(input)
+        x_proj = x
         dtype = x.dtype
 
         x1 = input.permute(0, 3, 1, 2)