ChannelKeys provides individual commitment secrets

[devrandom]

No description provided.

[codecov]

Codecov Report

Merging #652 into master will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #652      +/-   ##
==========================================
- Coverage   91.31%   91.30%   -0.01%     
==========================================
  Files          35       35              
  Lines       21225    21230       +5     
==========================================
+ Hits        19381    19385       +4     
- Misses       1844     1845       +1     

Impacted Files	Coverage Δ
lightning/src/chain/keysinterface.rs	94.81% <100.00%> (+0.03%)	⬆️
lightning/src/ln/chan_utils.rs	97.17% <100.00%> (ø)
lightning/src/ln/channel.rs	86.77% <100.00%> (ø)
lightning/src/ln/functional_tests.rs	97.29% <100.00%> (+<0.01%)	⬆️
lightning/src/util/enforcing_trait_impls.rs	100.00% <100.00%> (ø)
lightning/src/ln/channelmonitor.rs	95.63% <0.00%> (-0.08%)	⬇️

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[ariard]

Code Review ACK 1d37f56