支持工具函数Required/Partial

[HUxiaoAlinNG]

1. 支持工具函数Required/Partial
2. 补充工具函数文档说明

[codecov-commenter]

Codecov Report

Merging #14 (aeab49c) into master (c94dca2) will increase coverage by 0.31%.
The diff coverage is 95.34%.

@@            Coverage Diff             @@
##           master      #14      +/-   ##
==========================================
+ Coverage   94.77%   95.08%   +0.31%     
==========================================
  Files           3        3              
  Lines         765      793      +28     
  Branches      275      291      +16     
==========================================
+ Hits          725      754      +29     
+ Misses         40       39       -1     

Impacted Files	Coverage Δ
src/get-jsonschema-from-data.ts	96.07% <95.12%> (+0.59%)	⬆️
src/typescript-to-file-datas.ts	93.93% <100.00%> (ø)

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