blockservice: move session handling as part of the interface

[Jorropo]

See ipfs-shipyard/nopfs#34 (comment)

I'll do changelog one we decide on an option.

[Jorropo]

Current dependencies on/for this PR:

• main
  • PR blockservice: optimize getBlocks filter by not rescanning the already valid leading elements #558
    • PR blockservice: fix symbol name in docs #559
      • PR blockservice: stop using deprecated NewWriteThrough in tests #560
        • PR blockservice: remove deprecated NewWriteThrough function #565
        • PR blockservice: move session handling as part of the interface #563 👈
          • PR blockservice: remove inner fields access methods #564
        • PR blockservice: move to single unique struct and add WithContentBlocker option #561
          • PR blockservice: remove inner fields access methods #562
            • PR Move providing responsabilities from bitswap to blockservice #534
              • PR Remove content routing from bitswap network #535
                • PR Remove provider query manager #536
        • PR blockservice: add WithContentBlocker option #556
          • PR blockservice: optimize getBlocks filter by not rescanning the already valid leading elements #557

This stack of pull requests is managed by Graphite.

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (0536783) 65.58% compared to head (a76d47d) 65.45%.

@@            Coverage Diff             @@
##             main     #563      +/-   ##
==========================================
- Coverage   65.58%   65.45%   -0.13%     
==========================================
  Files         207      207              
  Lines       25621    25606      -15     
==========================================
- Hits        16803    16760      -43     
- Misses       7345     7367      +22     
- Partials     1473     1479       +6     

Files	Coverage Δ
fetcher/impl/blockservice/fetcher.go	74.35% <100.00%> (ø)
blockservice/blockservice.go	77.06% <97.36%> (-1.18%)	⬇️
gateway/blocks_backend.go	42.37% <0.00%> (ø)
ipld/merkledag/merkledag.go	76.65% <50.00%> (ø)

... and 16 files with indirect coverage changes

[Jorropo]

Fails to build to due to upstream issues in tests. Gonna fix once we do a decision.

[Jorropo]

We are going with #570