ARROW-6330: [C++] Include missing API headers

[emkornfield]

No description provided.

[codecov-io]

Codecov Report

Merging #5175 into master will increase coverage by 1.88%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5175      +/-   ##
==========================================
+ Coverage   87.36%   89.25%   +1.88%     
==========================================
  Files         909      739     -170     
  Lines      122252   105406   -16846     
  Branches     1437        0    -1437     
==========================================
- Hits       106807    94076   -12731     
+ Misses      15083    11330    -3753     
+ Partials      362        0     -362

Impacted Files	Coverage Δ
go/arrow/math/uint64_amd64.go
go/arrow/memory/memory_avx2_amd64.go
rust/datafusion/src/execution/filter.rs
rust/arrow/src/csv/writer.rs
rust/datafusion/src/bin/main.rs
go/arrow/ipc/file_reader.go
js/src/builder/index.ts
rust/parquet/src/arrow/converter.rs
go/arrow/array/builder.go
js/src/util/fn.ts
... and 461 more

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[wesm]

+1