Add context-based implementation

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[codecov]

Codecov Report

❌ Patch coverage is 91.24088% with 24 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.46%. Comparing base (2ee7096) to head (5bad3c4).

Files with missing lines	Patch %	Lines
experimental/contextio/effect.go	83.56%	12 Missing ⚠️
experimental/contextio/concurrent.go	84.78%	7 Missing ⚠️
experimental/contextio/fiber.go	94.64%	3 Missing ⚠️
experimental/contextio/errors.go	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #144      +/-   ##
==========================================
+ Coverage   89.11%   89.46%   +0.35%     
==========================================
  Files          44       51       +7     
  Lines        1387     1661     +274     
==========================================
+ Hits         1236     1486     +250     
- Misses        150      174      +24     
  Partials        1        1              

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