Improve: Introduce ReadOptionsInput

[davimacedo]

This PR introduces the ReadOptionsInput to encapsulate the read preferences and other options that can be needed in the future.

[codecov]

Codecov Report

Merging #6030 into master will increase coverage by 0.03%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #6030      +/-   ##
==========================================
+ Coverage    93.9%   93.93%   +0.03%     
==========================================
  Files         164      164              
  Lines       11084    11090       +6     
==========================================
+ Hits        10408    10417       +9     
+ Misses        676      673       -3

Impacted Files	Coverage Δ
src/GraphQL/loaders/parseClassQueries.js	97.67% <100%> (+0.11%)	⬆️
src/GraphQL/loaders/parseClassTypes.js	94.47% <100%> (+0.03%)	⬆️
src/GraphQL/loaders/defaultGraphQLTypes.js	96.31% <100%> (+0.04%)	⬆️
...dapters/Storage/Postgres/PostgresStorageAdapter.js	97.01% <0%> (-0.09%)	⬇️
src/RestWrite.js	93.72% <0%> (+0.16%)	⬆️
src/Adapters/Storage/Mongo/MongoStorageAdapter.js	92.94% <0%> (+0.7%)	⬆️

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[douglasmuraoka]

LGTM