[WIP] Bitswap retrievals from SPs

[aarshkshah1992]

Markets PR at filecoin-project/go-fil-markets#674.
DAGStore PR at filecoin-project/dagstore#116.

[codecov]

Codecov Report

Merging #7990 (57dac73) into feat/cid-to-piece-idx (7508d96) will increase coverage by 0.32%.
The diff coverage is 97.22%.

@@                    Coverage Diff                    @@
##           feat/cid-to-piece-idx    #7990      +/-   ##
=========================================================
+ Coverage                  38.89%   39.21%   +0.32%     
=========================================================
  Files                        662      662              
  Lines                      71622    71640      +18     
=========================================================
+ Hits                       27855    28097     +242     
+ Misses                     38949    38697     -252     
- Partials                    4818     4846      +28     

Impacted Files	Coverage Δ
extern/sector-storage/sealtasks/task.go	81.81% <ø> (ø)
itests/kit/deals.go	77.13% <ø> (ø)
extern/sector-storage/manager.go	61.29% <75.00%> (ø)
extern/sector-storage/ffiwrapper/sealer_cgo.go	59.56% <100.00%> (ø)
extern/sector-storage/mock/mock.go	61.35% <100.00%> (+0.10%)	⬆️
extern/sector-storage/piece_reader.go	63.33% <100.00%> (+4.58%)	⬆️
itests/kit/ensemble.go	91.24% <100.00%> (ø)
itests/kit/ensemble_opts.go	100.00% <100.00%> (ø)
markets/dagstore/wrapper.go	78.02% <100.00%> (+0.19%)	⬆️
node/modules/storageminer.go	63.62% <100.00%> (+0.05%)	⬆️
... and 39 more

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[jennijuju]

@aarshkshah1992 are you still working on it?

[rjan90]

Closing after approval to close this from @aarshkshah1992