refactor: convert RepoType from int to interface

[nonsense]

Related Issues

This PR is convering RepoType type from int to interface, so that we can use the repo package in other projects and provide a custom Config, that is not referred to in Lotus (such as config.Boost).

The new usage can be seen at: filecoin-project/boost#231

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We want to be using the filecoin-project/lotus/node/repo package, due to the fx dependency injection, as we want to integrate all Lotus markets dependencies directly in boost before releasing the alpha version.

Checklist

Before you mark the PR ready for review, please make sure that:

• All commits have a clear commit message.
• The PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, INTERFACE BREAKING CHANGE, CONSENSUS BREAKING, build, chore, ci, docs,perf, refactor, revert, style, test
  • area: api, chain, state, vm, data transfer, market, mempool, message, block production, multisig, networking, paychan, proving, sealing, wallet, deps
• This PR has tests for new functionality or change in behaviour
• If new user-facing features are introduced, clear usage guidelines and / or documentation updates should be included in https://lotus.filecoin.io or Discussion Tutorials.
• CI is green

[codecov]

Codecov Report

Merging #8086 (7cdf6dc) into master (a94e47c) will increase coverage by 0.29%.
The diff coverage is 49.61%.

❗ Current head 7cdf6dc differs from pull request most recent head 057c09b. Consider uploading reports for the commit 057c09b to get more accurate results

@@            Coverage Diff             @@
##           master    #8086      +/-   ##
==========================================
+ Coverage   40.23%   40.53%   +0.29%     
==========================================
  Files         682      676       -6     
  Lines       74428    73575     -853     
==========================================
- Hits        29946    29821     -125     
+ Misses      39247    38537     -710     
+ Partials     5235     5217      -18     

Impacted Files	Coverage Δ
cli/auth.go	0.00% <0.00%> (ø)
cmd/lotus-shed/datastore.go	0.00% <0.00%> (ø)
cmd/lotus-shed/rpc.go	0.00% <0.00%> (ø)
node/repo/fsrepo.go	38.91% <15.15%> (-4.86%)	⬇️
cli/util/api.go	26.78% <20.00%> (+2.51%)	⬆️
node/modules/storageminer.go	61.50% <60.48%> (-2.30%)	⬇️
node/repo/memrepo.go	69.03% <66.66%> (-0.47%)	⬇️
node/modules/storageminer_dagstore.go	70.00% <70.00%> (+8.46%)	⬆️
node/config/dynamic_config.go	75.00% <75.00%> (ø)
node/builder.go	76.92% <100.00%> (+0.22%)	⬆️
... and 79 more

[nonsense]

Thanks for review @magik6k !!! I think I addressed all your comments.

[nonsense]

@magik6k we modified a bit further the config in order to be able to pass in config.Boost. I am not happy with how we handle the dynamic configs... any suggestions on how to do that in a better way?

[nonsense]

@magik6k I think I addressed the latest comments.

[nonsense]

@magik6k I rebased to master, and I think this is ready for merge. Could you have another look, and let me know if you think we need anything else as part of this PR?

[nonsense]

thanks!! :)