Upload wheel

[linshokaku]

close #770

[kmaehashi]

Could you confirm that the contents of the wheel matches with the sdist?

[linshokaku]

The following command was used to compare the generated package files, and nothing was output, confirming that there is no difference in content.

mkdir tar_package
tar -xzf pytorch-pfn-extras-0.7.3.tar.gz -C ./tar_package
unzip -q pytorch_pfn_extras-0.7.3-py3-none-any.whl -d ./whl_package
diff -r ./whl_package/pytorch_pfn_extras ./tar_package/pytorch-pfn-extras-0.7.3/pytorch_pfn_extras