Add __ge__ to TorchVersion (#64565)
Summary:
This PR adds greater equal comparison so that not the base class's (str) comparison method is used.
This is necessary for a correct comparison with a version string.
Previously the following was the case:
```py
>>> torch.__version__
'1.10.0.dev20210830+cpu'
>>> torch.__version__>"1.9"
True
>>> torch.__version__>="1.9"
False # Wrong output since the base class (str) was used for __ge__ comparison
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/64565
Reviewed By: raghuramank100
Differential Revision: D30790463
Pulled By: mrshenli
fbshipit-source-id: 79c680f8b448001b34d3e5d5332124a78bea4e34
