crypto/zkproof: Implement a proof of consistency two points

[cychuang0924]

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Checklist

• Fork the repository and create your new branch from master.
• Please mention the name of community in Pull Request title.
• Git Commit Messages
  • Use the present tense (Also in Pull Request title): "Add feature" not "Added feature"
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  • Use rebase to squash/fixup dummy/unnecessary commits into only one commit.

[codecov-commenter]

Codecov Report

Merging #113 into master will decrease coverage by 1.74%.
The diff coverage is 77.36%.

@@            Coverage Diff             @@
##           master     #113      +/-   ##
==========================================
- Coverage   86.59%   84.84%   -1.75%     
==========================================
  Files          55       65      +10     
  Lines        3992     4706     +714     
==========================================
+ Hits         3457     3993     +536     
- Misses        306      467     +161     
- Partials      229      246      +17     

Impacted Files	Coverage Δ
crypto/homo/cl/cl.go	64.58% <ø> (ø)
crypto/matrix/matrix.go	84.35% <ø> (ø)
crypto/tss/message/msg_main.go	77.38% <0.00%> (ø)
crypto/utils/utils.go	74.31% <ø> (-1.84%)	⬇️
crypto/zkproof/consistencytwopoints.go	0.00% <0.00%> (ø)
crypto/zkproof/schnorr.go	69.81% <ø> (ø)
crypto/tss/utils.go	39.43% <25.92%> (-42.92%)	⬇️
...pto/birkhoffinterpolation/birkhoffinterpolation.go	89.31% <82.35%> (-2.44%)	⬇️
crypto/tss/addshare/oldpeer/0_peer_handler.go	86.23% <86.23%> (ø)
crypto/tss/addshare/newpeer/addshare.go	86.36% <86.36%> (ø)
... and 42 more

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