Add tests for all padding layers to `module_db` in `common_modules.py` (#96641)
Adding the PR discussed in #96295.
- Adds tests for all current padding layers to `module_db` in `torch/testing/_internal/common_modules.py` ( `nn.ReflectionPad`, `nn.ReplicationPad`, `nn.ZeroPad`, `nn.ConstantPad` ) for 1D, 2D, and 3D variants.
- Removes tests for the same padding layers from `torch/testing/_internal/common_nn.py`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96641
Approved by: https://github.com/albanD
