(DEMO) tests pass when validate_full is forced

[alamb]

Built on #921

This PR demonstrates that (most) of the tests pass if I (temporarily) force ArrayData::new_unchecked() to check all inputs, which gives me additional confidence that validate_full() is validating inputs as it supposed to.

The only one that fails is related to the arrow_reader not having its nullability set correctly which I think is a bug in the array reader and which I will file separately

[alamb]

this is the demo -- it is not for merging, but for demonstrating that all the tests pass even when we run validate_full() on them

[alamb]

This test fails as follows:

---- arrow::arrow_reader::tests::test_read_maps stdout ----
thread 'arrow::arrow_reader::tests::test_read_maps' panicked at 'called `Result::unwrap()` on an `Err` value: InvalidArgumentError("Child type mismatch for Struct([Field { name: \"key\", data_type: Utf8, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }, Field { name: \"value\", data_type: Map(Field { name: \"key_value\", data_type: Struct([Field { name: \"key\", data_type: Int32, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }, Field { name: \"value\", data_type: Boolean, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }]), nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }, false), nullable: true, dict_id: 0, dict_is_ordered: false, metadata: None }]). Expected Map(Field { name: \"key_value\", data_type: Struct([Field { name: \"key\", data_type: Int32, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }, Field { name: \"value\", data_type: Boolean, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }]), nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }, false) but child data had Map(Field { name: \"key_value\", data_type: Struct([Field { name: \"key\", data_type: Int32, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }, Field { name: \"value\", data_type: Boolean, nullable: false, dict_id: 0, dict_is_ordered: false, metadata: None }]), nullable: true, dict_id: 0, dict_is_ordered: false, metadata: None }, false)")', arrow/src/array/data.rs:308:34
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

(the issue is the nullability of the child field is declared differently on the Struct's datatype than on the ArrayData which I think is an actual bug in the array reader, and will file a follow on ticket)

[codecov-commenter]

Codecov Report

Merging #987 (72906d5) into master (6a6e7f7) will decrease coverage by 0.00%.
The diff coverage is 87.93%.

@@            Coverage Diff             @@
##           master     #987      +/-   ##
==========================================
- Coverage   82.31%   82.31%   -0.01%     
==========================================
  Files         168      168              
  Lines       48763    49008     +245     
==========================================
+ Hits        40139    40339     +200     
- Misses       8624     8669      +45     

Impacted Files	Coverage Δ
parquet/src/arrow/arrow_reader.rs	88.88% <ø> (-0.44%)	⬇️
arrow/src/array/data.rs	82.37% <85.88%> (+2.57%)	⬆️
arrow/src/array/array_binary.rs	93.20% <100.00%> (-0.22%)	⬇️
arrow/src/array/array_boolean.rs	94.48% <100.00%> (-0.05%)	⬇️
arrow/src/array/array_dictionary.rs	88.75% <100.00%> (+0.28%)	⬆️
arrow/src/array/array_list.rs	94.46% <100.00%> (-1.07%)	⬇️
arrow/src/array/array_primitive.rs	94.05% <100.00%> (-0.04%)	⬇️
arrow/src/array/array_string.rs	97.08% <100.00%> (-0.83%)	⬇️
arrow/src/buffer/immutable.rs	97.84% <100.00%> (ø)
parquet/src/arrow/array_reader.rs	75.69% <0.00%> (-1.07%)	⬇️
... and 8 more

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[alamb]

This PR has served its purpose. RIP