Add text spotting

[rwood-97]

Summary

This PR begins the work of bringing text detection/recognition (ie. text spotting) into MapReader.

Addresses #358

Describe your changes

DeepSoloRunner is a class used for running the DeepSolo model on images. This produces polygons + text. DPTextDETRRunner is a class used for running the DPText-DETR model on images. This produces just polygons.

To do:

• [x] Allow user to run on all patches in provided patch df
• [x] Add plotting function
• [x] Add docs for getting this running
• [x] Check licences
• [x] Add worked example
• [ ] Add polygon merging code (?)

Checklist before assigning a reviewer (update as needed)

• [x] Self-review code
• [x] Ensure submission passes current tests
• [ ] Add tests
• [ ] Update relevant docs

Reviewer checklist

Please add anything you want reviewers to specifically focus/comment on.

• [ ] Everything looks ok?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 6.16622% with 350 lines in your changes are missing coverage. Please review.

Project coverage is 62.12%. Comparing base (f3b151c) to head (6237341). Report is 6 commits behind head on main.

Files	Patch %	Lines
mapreader/spot_text/deepsolo_runner.py	4.02%	191 Missing :warning:
mapreader/spot_text/dptext_detr_runner.py	4.24%	158 Missing :warning:
mapreader/load/images.py	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #388      +/-   ##
==========================================
- Coverage   65.41%   62.12%   -3.29%     
==========================================
  Files          37       39       +2     
  Lines        6329     6701     +372     
==========================================
+ Hits         4140     4163      +23     
- Misses       2189     2538     +349     

Flag	Coverage Δ
unittests	62.12% <6.16%> (-3.29%)	:arrow_down:

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[edwardchalstrey1]

@rwood-97 to test this here's what I think I need to do - please can you edit this list as needed:

1. Check out the branch
2. ~~Set up a conda env like this to install MapReader using this branch~~ Set up a conda env and do pip install .
3. Install model dependencies outlined here
   • Only one of the models can be installed at a time
4. Run the two notebooks from this PR locally and make sure everything works

[thobson88]

In the DPTextDETR Pipeline.ipynb notebook, the line:

from mapreader.text_spot.dptext_detr_runner import DPTextDETRRunner

should be:

from mapreader.spot_text.dptext_detr_runner import DPTextDETRRunner

That line also failed initially (for me) because the timm dependency wasn't installed. I just did pip install timm in the same venv, and then it worked.