Swich to erlang-tc for threshold-cryptography

[vihu]

This adds support for curve BLS12-381 keys. Please refer to HIP30 for more information.

[codecov]

Codecov Report

Merging #36 (d99f4c3) into master (0260f48) will decrease coverage by 3.11%.
The diff coverage is 83.33%.

❗ Current head d99f4c3 differs from pull request most recent head 505e91a. Consider uploading reports for the commit 505e91a to get more accurate results

@@            Coverage Diff             @@
##           master      #36      +/-   ##
==========================================
- Coverage   85.90%   82.78%   -3.12%     
==========================================
  Files           8        4       -4     
  Lines         532      366     -166     
==========================================
- Hits          457      303     -154     
+ Misses         75       63      -12     

Impacted Files	Coverage Δ
src/dkg_util.erl	71.42% <66.66%> (-8.58%)	⬇️
src/dkg_hybridvss.erl	81.57% <81.44%> (+1.02%)	⬆️
src/dkg_hybriddkg.erl	84.45% <85.71%> (+4.64%)	⬆️
src/dkg_commitment.erl	82.22% <95.65%> (-4.06%)	⬇️

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[evanmcc]

I suspect that I'm a bit too far from the TC code for you to merge this on my approval, but this looks reasonable to me.