Moved Bytes to own crate

[jorgecarleitao]

This PR proposes that we move the Bytes API to another crate so others can use it without having to copy paste. It also separates concerns between this crate (arrow) and a mechanism to use share foreign arrays with Rust still compatible with mutable APIs.

Proposed home: https://github.com/DataEngineeringLabs/foreign_vec

[codecov]

Codecov Report

Merging #1141 (0fc0182) into main (98e4913) will decrease coverage by 0.00%.
The diff coverage is 90.90%.

@@            Coverage Diff             @@
##             main    #1141      +/-   ##
==========================================
- Coverage   83.59%   83.59%   -0.01%     
==========================================
  Files         366      365       -1     
  Lines       35901    35851      -50     
==========================================
- Hits        30013    29970      -43     
+ Misses       5888     5881       -7     

Impacted Files	Coverage Δ
src/array/ffi.rs	86.95% <ø> (ø)
src/array/map/ffi.rs	0.00% <0.00%> (ø)
src/array/null.rs	45.67% <0.00%> (ø)
src/array/union/ffi.rs	0.00% <ø> (ø)
src/array/binary/ffi.rs	97.50% <100.00%> (ø)
src/array/boolean/ffi.rs	97.14% <100.00%> (ø)
src/array/dictionary/ffi.rs	70.83% <100.00%> (ø)
src/array/fixed_size_binary/ffi.rs	97.22% <100.00%> (ø)
src/array/fixed_size_list/ffi.rs	87.50% <100.00%> (ø)
src/array/list/ffi.rs	97.56% <100.00%> (ø)
... and 10 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 98e4913...0fc0182. Read the comment docs.

[jorgecarleitao]

cc @jhorstmann @ritchie46 , since both also contributed to this component (either here or in arrow-rs).

[ritchie46]

LGTM. 👍