:sparkles: Introducing RioXarrayReaderIterDataPipe for reading GeoTIFFs

[weiji14]

An iterable-style DataPipe for GeoTIFF data! Composition over inheritance~

I/O handled using rioxarray. IterDataPipe code based on https://github.com/pytorch/data/blob/v0.3.0/torchdata/datapipes/iter/load/online.py#L29-L59.

TODO:

• [x] Add torchdata and rioxarray dependencies
• [x] Initial implementation of RioXarrayReaderIterDataPipe
• [x] Example walkthrough notebook on using .read_from_rioxarray() (separate PR at #8)

References:

• https://pytorch.org/blog/pytorch-1.11-released/#introducing-torchdata
• https://github.com/pytorch/data/tree/v0.3.0#what-are-datapipes
• https://zhuanlan.zhihu.com/p/484258515
• https://pytorch.org/data/0.4.0/tutorial.html#implementing-a-custom-datapipe
• https://realpython.com/inheritance-composition-python/