Feature/refactor stream

[vitoke]

The @rimbu/stream package has been refactored with the following main differences:

• filter... and find methods now infer types when the predicate is a type guard
• More Reducers and AsyncReducers added like partition, groupBy, and race.
• Combining reducers has been made easier by extending the reduce... methods to accept reducer shapes.
• Reducers and AsyncReducers can now be halted in the initialisation phase
• Reducer and AsyncReducers now always require a lazy initialisation value
• More Transformers and AsyncTransformers have been added like flatMap, flatZip, and filter.
• Stream and AsyncStream have been extended with convenience methods based on the new reducers.
• Transformers and convenience methods have been added like splitOn, splitOnSlice.

[codecov]

Codecov Report

Attention: 152 lines in your changes are missing coverage. Please review.

Comparison is base (3e41aee) 96.91% compared to head (1ad227b) 97.30%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
...es/stream/src/async-custom/async-stream-custom.mts	90.31%	55 Missing ⚠️
packages/stream/src/custom/stream-custom.mts	91.50%	52 Missing ⚠️
packages/stream/src/async/async-reducer.mts	95.97%	33 Missing ⚠️
...ream/src/async-custom/async-fast-iterator-base.mts	92.92%	7 Missing ⚠️
packages/stream/src/async/async-transformer.mts	98.66%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #207      +/-   ##
==========================================
+ Coverage   96.91%   97.30%   +0.38%     
==========================================
  Files         321      321              
  Lines       56319    57636    +1317     
  Branches     6587     6807     +220     
==========================================
+ Hits        54583    56083    +1500     
+ Misses       1724     1541     -183     
  Partials       12       12              

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