Rust layer for encoding/decoding parquet files

[twitu]

Pull Request

• C-bindings for catalog
• Rust arrow2 style schema defintions
• Generic traits for reading and writing from and to parquet files
• Working example for reading and writing to and from parquet files

Type of change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How has this change been tested?

Rust catalog has been manually tested. C-bindings have unit tests.

[codecov]

Codecov Report

Merging #699 (5240b33) into develop (0e53e0f) will increase coverage by 0.02%.
The diff coverage is n/a.

❗ Current head 5240b33 differs from pull request most recent head 22fc719. Consider uploading reports for the commit 22fc719 to get more accurate results

@@             Coverage Diff             @@
##           develop     #699      +/-   ##
===========================================
+ Coverage    90.50%   90.53%   +0.02%     
===========================================
  Files          308      308              
  Lines        25951    25946       -5     
===========================================
+ Hits         23488    23491       +3     
+ Misses        2463     2455       -8     

Impacted Files	Coverage Δ
nautilus_trader/common/logging.pyx	93.29% <0.00%> (-0.31%)	⬇️
nautilus_trader/model/events/account.pyx	100.00% <0.00%> (ø)
nautilus_trader/persistence/external/core.py	93.75% <0.00%> (+0.96%)	⬆️
nautilus_trader/persistence/catalog/parquet.py	86.17% <0.00%> (+1.59%)	⬆️
nautilus_trader/common/timer.pyx	99.16% <0.00%> (+3.13%)	⬆️

---

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 0e53e0f...22fc719. Read the comment docs.