remove pytorch-ie

[ArneBinder]

IMPORTANT: All pie-modules releases that INCLUDE this PR should NEVER be used in combination with pytorch-ie WITHOUT ArneBinder/pytorch-ie#476!

remove pytorch-ie in favor of pie-core, i.e.,

• remove model and taskmodule implementations
• add annotations and documents from pytorch-ie
• remove tokenize_document. This also removes the tokenize parameter from (document tokenization should happen in a dedicated preprocessing step):
  • RelationArgumentDistanceCollector
  • SpanCoverageCollector
  • SpanLengthCollector, and
  • completely removes TokenCountCollector
• remove utils.tokenization including get_aligned_token_span
• remove backwards compatibility re-exports:
  • utils.dictionary (including list_of_dicts2dict_of_lists and flatten_dict)
  • utils.hydra (including resolve_type and resolve_target)
• cleanup dependencies
• minor fixes
• adjust the README.md

This implements #172.

This is the follow-up of #176.

More context: ArneBinder/pie-core#17

Follow-up: remove transformers dependency (i.e., remove tokenize_document)

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 97.23502% with 6 lines in your changes missing coverage. Please review.

Project coverage is 97.19%. Comparing base (d105e61) to head (6ddb6b4).

Files with missing lines	Patch %	Lines
src/pie_modules/annotations.py	96.77%	4 Missing ⚠️
src/pie_modules/documents.py	97.56%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #187      +/-   ##
==========================================
+ Coverage   95.76%   97.19%   +1.43%     
==========================================
  Files          68       24      -44     
  Lines        6156     1999    -4157     
==========================================
- Hits         5895     1943    -3952     
+ Misses        261       56     -205     

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