Expose multisig key sorting helpers

[xandkar]

No description provided.

[codecov]

Codecov Report

Merging #13 (9cfb1c5) into master (00394ae) will decrease coverage by 1.02%.
The diff coverage is 84.84%.

❗ Current head 9cfb1c5 differs from pull request most recent head ee368e7. Consider uploading reports for the commit ee368e7 to get more accurate results

@@            Coverage Diff             @@
##           master      #13      +/-   ##
==========================================
- Coverage   94.94%   93.92%   -1.03%     
==========================================
  Files           1        1              
  Lines         356      362       +6     
==========================================
+ Hits          338      340       +2     
- Misses         18       22       +4     

Impacted Files	Coverage Δ
src/libp2p_crypto.erl	93.92% <84.84%> (-1.03%)	⬇️

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