feat: make public the ingest and registry

[alanshaw]

Context

I wanted to run an IPNI node locally, programmatically, for testing.

Proposed Changes

Make ingest and registry packages public.

Tests

No code added.

Revert Strategy

Change is safe to revert.

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.69%. Comparing base (f74cf2a) to head (11216d0).
Report is 67 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2680      +/-   ##
==========================================
+ Coverage   42.85%   45.69%   +2.84%     
==========================================
  Files          96       94       -2     
  Lines       11436    11186     -250     
==========================================
+ Hits         4901     5112     +211     
+ Misses       5936     5462     -474     
- Partials      599      612      +13     

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[gammazero]

@masih, @alanshaw
storetheindex is meant to be an application and not a library. I recommend that the ingestion/registry code be moved into another repo that is meant as a library, so that it can be maintained as such and not treated like an application for our own use.

I think the code should either move into ipni/go-libipni or into another new repo ipni/ingest