Add extract strategy for text, file and link fields

[bloodbare]

Description

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How was this PR tested?

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[codecov]

Codecov Report

Attention: Patch coverage is 84.21053% with 3 lines in your changes missing coverage. Please review.

Project coverage is 87.03%. Comparing base (f612bd3) to head (1fb4dd8).

Files with missing lines	Patch %	Lines
nucliadb/src/nucliadb/writer/api/v1/upload.py	60.00%	2 Missing ⚠️
nucliadb/src/nucliadb/writer/resource/field.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2774      +/-   ##
==========================================
- Coverage   87.13%   87.03%   -0.10%     
==========================================
  Files         386      386              
  Lines       24293    24304      +11     
==========================================
- Hits        21167    21153      -14     
- Misses       3126     3151      +25     

Flag	Coverage Δ
nucliadb	74.92% <76.92%> (+<0.01%)	⬆️
nucliadb-ingest	40.79% <7.69%> (-0.03%)	⬇️
nucliadb-reader	42.99% <7.69%> (-0.01%)	⬇️
nucliadb-search	43.69% <7.69%> (-0.02%)	⬇️
nucliadb-standalone	47.56% <23.07%> (-0.03%)	⬇️
nucliadb-train	45.74% <23.07%> (-0.02%)	⬇️
nucliadb-writer	46.26% <53.84%> (+<0.01%)	⬆️
nucliadb_dataset	55.45% <ø> (ø)
nucliadb_models	85.81% <100.00%> (-0.01%)	⬇️
nucliadb_sdk	80.11% <ø> (ø)
nucliadb_sidecar	87.24% <ø> (-1.79%)	⬇️
nucliadb_telemetry	86.56% <ø> (ø)
nucliadb_utils	83.77% <ø> (ø)

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