Nonblocking storage deals [#80]

[ingar]

Summary

Break apart states such that chain mutating operations are in their own state and don't block. This is groundwork for being able to resume storage deals in progress.

Resolves #80

[hannahhoward]

Most of the comments are non-blocking but I'd like to see the missing tests get written.

However, there's one big pice I had imagined being part of this that's missing -- breaking up publishing deals. This seems like potentially the most harmful of the "double submit" cases and I think we should cover it.

I think that covers all the messages this module directly submits to the chain, which was the original scope of this ticket.

However, I'm ok with merging this (it's a definite improvement and works) and deferring to a seperate ticket, as long as we make the seperate ticket.

[hannahhoward]

LGTM but let's change the PublishDeals api on the node interface before we merge this.

[codecov-io]

Codecov Report

Merging #194 into development will decrease coverage by 0.14%.
The diff coverage is 66.67%.

@@               Coverage Diff               @@
##           development     #194      +/-   ##
===============================================
- Coverage        67.15%   67.02%   -0.13%     
===============================================
  Files               40       40              
  Lines             2161     2231      +70     
===============================================
+ Hits              1451     1495      +44     
- Misses             601      626      +25     
- Partials           109      110       +1     

Impacted Files	Coverage Δ
storagemarket/impl/client.go	0.00% <0.00%> (ø)
storagemarket/impl/provider.go	5.86% <0.00%> (-0.33%)	⬇️
storagemarket/types.go	33.34% <ø> (ø)
...oragemarket/impl/providerstates/provider_states.go	87.96% <88.89%> (+0.32%)	⬆️
storagemarket/impl/clientstates/client_states.go	93.66% <93.34%> (+1.06%)	⬆️
storagemarket/impl/clientstates/client_fsm.go	100.00% <100.00%> (ø)
storagemarket/impl/providerstates/provider_fsm.go	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 09fa1c0...dc5e001. Read the comment docs.