BoolTypecastGenerator - adds by default bool typecast for boolean fields

[gam6itko]

Описание проблемы здесь: spiral/cycle-bridge#24

[codecov]

Codecov Report

Merging #56 (e2a07c5) into 2.x (4838734) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head e2a07c5 differs from pull request most recent head 05415ba. Consider uploading reports for the commit 05415ba to get more accurate results

@@            Coverage Diff            @@
##                2.x      #56   +/-   ##
=========================================
  Coverage     94.12%   94.13%           
- Complexity      511      512    +1     
=========================================
  Files            40       40           
  Lines          1328     1279   -49     
=========================================
- Hits           1250     1204   -46     
+ Misses           78       75    -3     

Impacted Files	Coverage Δ
src/Generator/GenerateTypecast.php	93.54% <100.00%> (+3.07%)	⬆️
src/Relation/RelationSchema.php	89.28% <0.00%> (-0.72%)	⬇️
src/Relation/HasMany.php	96.55% <0.00%> (-0.42%)	⬇️
src/Registry.php	87.64% <0.00%> (-0.41%)	⬇️
src/Compiler.php	91.57% <0.00%> (-0.35%)	⬇️
src/Relation/ManyToMany.php	98.11% <0.00%> (-0.28%)	⬇️
src/Relation/Traits/MorphTrait.php	95.45% <0.00%> (-0.20%)	⬇️
src/Relation/Traits/FieldTrait.php	98.50% <0.00%> (-0.09%)	⬇️
src/Relation/OptionSchema.php	98.36% <0.00%> (-0.03%)	⬇️
src/Relation/HasOne.php	100.00% <0.00%> (ø)
... and 12 more

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