feat(it): support for Node.js familiar API usage

[wellwelwel]

Closes #209.

---

Now it module is available:

import { describe, it, assert } from 'poku';

describe('Calc suite', () => {
  it('Sums', () => {
    assert.equal(1 + 1, 2);
    assert.equal(2 + 2, 4);
  });

  it('Div', () => {
    assert.equal(1 / 1, 1);
    assert.equal(2 / 2, 1);
  });
});

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.08%. Comparing base (b423a7e) to head (483b751).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #354      +/-   ##
==========================================
+ Coverage   95.00%   95.08%   +0.08%     
==========================================
  Files          32       33       +1     
  Lines        2640     2686      +46     
  Branches      425      434       +9     
==========================================
+ Hits         2508     2554      +46     
  Misses        125      125              
  Partials        7        7              

Flag	Coverage Δ
linux-parallel	94.67% <100.00%> (+0.09%)	⬆️
linux-parallel-options	94.97% <100.00%> (+0.08%)	⬆️
linux-sequential	93.37% <100.00%> (+0.11%)	⬆️
linux-sequential-options	93.63% <100.00%> (+0.11%)	⬆️
osx-parallel	94.67% <100.00%> (+0.09%)	⬆️
osx-parallel-options	94.97% <100.00%> (+0.08%)	⬆️
osx-sequential	93.37% <100.00%> (+0.11%)	⬆️
osx-sequential-options	?
windows-parallel	94.22% <100.00%> (+0.10%)	⬆️
windows-parallel-options	94.52% <100.00%> (+0.09%)	⬆️
windows-sequential	?
windows-sequential-options	?

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