Remove bcypto

[mpetrun5]

Replaced:

• bcrypto/x25519 with https://github.com/StableLib/stablelib/tree/master/packages/x25519
• bcrypto/aead with https://github.com/StableLib/stablelib/tree/master/packages/chacha20poly1305
• bcrypto/hkdf with https://github.com/StableLib/stablelib/tree/master/packages/hkdf

resolves #93

[codecov-commenter]

Codecov Report

Merging #100 (1e6dc90) into master (168ae90) will increase coverage by 0.03%.
The diff coverage is 96.82%.

@@            Coverage Diff             @@
##           master     #100      +/-   ##
==========================================
+ Coverage   89.09%   89.13%   +0.03%     
==========================================
  Files          16       16              
  Lines        1807     1832      +25     
  Branches      239      243       +4     
==========================================
+ Hits         1610     1633      +23     
- Misses        197      199       +2     

Impacted Files	Coverage Δ
src/utils.ts	98.41% <89.47%> (-1.59%)	⬇️
src/handshakes/abstract-handshake.ts	94.14% <100.00%> (+0.29%)	⬆️
src/noise.ts	77.34% <100.00%> (+0.82%)	⬆️

---

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[vasco-santos]

🎉

Do you have any metrics on the bundle size difference?

[vasco-santos]

~27% decrease on its bundle size, from 191.5kb to 141.2kb (minified+gzipped)

🚀 ❤️

[mpetrunic]

~27% decrease on its bundle size, from 191.5kb to 141.2kb (minified+gzipped)

🚀 ❤️

from our benchmark there is also speed improvement:

NEW:

Initializing handshake benchmark
Init complete, running benchmark
handshake x 39.97 ops/sec ±4.98% (67 runs sampled)
Done in 6.04s.


OLD:

Initializing handshake benchmark
Init complete, running benchmark
handshake x 27.23 ops/sec ±4.57% (67 runs sampled)
Done in 6.10s.