feat(aens): support unicode names claim

[davidyuk]

closes #1726 #1539
partially #1580

URL class can encode emoji to punycode, but it is not supported in IDNA2008, so node not accepting these names.

This PR is supported by the Æternity Crypto Foundation

[codecov]

Codecov Report

Patch coverage: 78.34% and project coverage change: -0.25 ⚠️

Comparison is base (3653b13) 82.68% compared to head (f837e90) 82.44%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1840      +/-   ##
===========================================
- Coverage    82.68%   82.44%   -0.25%     
===========================================
  Files           91       93       +2     
  Lines         3119     3252     +133     
  Branches       617      648      +31     
===========================================
+ Hits          2579     2681     +102     
- Misses         249      265      +16     
- Partials       291      306      +15     

Impacted Files	Coverage Δ
src/aens.ts	89.74% <ø> (ø)
src/chain.ts	87.05% <ø> (ø)
src/tx/builder/constants.ts	100.00% <ø> (ø)
src/Middleware.ts	67.64% <67.64%> (ø)
src/MiddlewareSubscriber.ts	70.27% <70.27%> (ø)
src/index-browser.ts	97.61% <94.11%> (-2.39%)	⬇️
src/channel/Base.ts	76.47% <100.00%> (ø)
src/deprecated.ts	50.00% <100.00%> (+10.00%)	⬆️
src/tx/builder/helpers.ts	87.87% <100.00%> (+8.80%)	⬆️

... and 1 file with indirect coverage changes

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