Made cargo features not default

[jorgecarleitao]

This is a request for feedback: basically, it makes most features non-default and introduced a new feature, "full", containing most features.

This follows the same pattern of Tokio-rs (which has many features and a "full"). This makes it easier to start without being overwhelmed by all the dependencies we can potentially bring.

To migrate, pass --features full,benchmarks (or select the features accordingly ^_^)

[codecov]

Codecov Report

Merging #369 (a704d6d) into main (37353bb) will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #369      +/-   ##
==========================================
+ Coverage   81.13%   81.17%   +0.04%     
==========================================
  Files         326      325       -1     
  Lines       21150    21141       -9     
==========================================
+ Hits        17160    17162       +2     
+ Misses       3990     3979      -11     

Impacted Files	Coverage Δ
src/types/mod.rs	28.31% <0.00%> (-0.89%)	⬇️
src/util/bench_util.rs
src/io/json_integration/schema.rs	44.89% <0.00%> (+0.30%)	⬆️
src/io/json/read/reader.rs	75.67% <0.00%> (+1.35%)	⬆️
src/io/json_integration/write.rs	6.25% <0.00%> (+6.25%)	⬆️

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[jorgecarleitao]

cc @sundy-li and @ritchie46 , as it impacts you.