Switch to rasterio

[banesullivan]

With the addition of the new rasterio based source module in large-image, I have decided to go all in on rasterio here and drop GDAL use. Additionally, I have decided to limit the scope of this project to only geospatial images moving forward (since large-image has development underway for better non-geo visualization in Jupyter).

This is a start to a handful of changes that will ultimately make localtileserver easier to use and more performant.

With this switch to rasterio and some significant internal refactoring, this will warrant a major version bump -- v1.0.0 is on its way

[codecov-commenter]

Codecov Report

Merging #154 (7eeedab) into main (d5bfa56) will increase coverage by 1.27%.
The diff coverage is 88.88%.

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@@            Coverage Diff             @@
##             main     #154      +/-   ##
==========================================
+ Coverage   85.66%   86.93%   +1.27%     
==========================================
  Files          24       24              
  Lines        1381     1370      -11     
==========================================
+ Hits         1183     1191       +8     
+ Misses        198      179      -19     

[banesullivan]

cc @giswqs, I think you'll be happy to see this! But this PR is completely changing the dependency stack and may impact your usage

[giswqs]

This is great. It will make the installation much easier. I will keep an eye on this and make changes downstream accordingly

[banesullivan]

Going ahead with a merge as I'd like to do some other internal refactoring. Release is not coming immediately as I need to do more testing and want feedback from @giswqs

[giswqs]

Sure. I can help with testing