Added m2m_changed signal

[KengoWada]

Resolves #26

Added m2m_changed signal for django_typesense models

Changes made

• Added m2m_changed_typesense_models to handle ManyToManyField changes
• Added tests for django_typesense.signals
• Added tests.utils to contain get_document
• Updated test_typesense_model_mixin to use new get_document from utils

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (459224c) 60.36% compared to head (0fdd1b9) 61.46%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #30      +/-   ##
==========================================
+ Coverage   60.36%   61.46%   +1.10%     
==========================================
  Files          10       10              
  Lines         439      449      +10     
==========================================
+ Hits          265      276      +11     
+ Misses        174      173       -1     

Files	Coverage Δ
django_typesense/signals.py	100.00% <100.00%> (+7.69%)	⬆️

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[KengoWada]

Hey @EricOuma please review my PR. Thanks

[EricOuma]

Hi. I will.

…

On Sat, 4 Nov 2023 at 20:34, Kengo Wada ***@***.***> wrote: Hey @EricOuma <https://github.com/EricOuma> please review my PR. Thanks — Reply to this email directly, view it on GitHub <#30 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AH4HSZAPTWK5T3C7ZHM5UPDYCZ4BVAVCNFSM6AAAAAA63NMV4OVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTOOJTGUYDGNBSGY> . You are receiving this because you were mentioned.Message ID: ***@***.***>

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