✨ Implement PyCogReader struct with new and to_numpy methods

[weiji14]

A (Py)CogReader class for Python that wraps around the CogReader struct!

Usage (Python):

import numpy as np
from cog3pio import CogReader

cog_url: str = (
    "https://github.com/cogeotiff/rio-tiler/raw/6.4.1/tests/fixtures/cog_nodata_nan.tif"
)
reader = CogReader(path=cog_url)

array: np.ndarray = reader.to_numpy()
assert array.shape == (1, 549, 549)  # bands, height, width

TODO:

• Initial implementation of new (__init__) and to_numpy methods
• Add docstrings
• Add unit tests

TODO in the future:

• Add type hint stubs (best to set up linter CIs first)

P.S. This is a set up for the eventual xarray backend code 😉