[wip][ffi] transaction and append data FFI

[zachschuermann]

What changes are proposed in this pull request?

1. all new FFI for Transaction including creation, adding commit info, adding write metadata, and committing
2. new default engine FFI for writing parquet
3. write_table C example

This PR affects the following public APIs

TODO

How was this change tested?

1. new C example write_table
2. TODO more rust tests with miri enabled

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 90 lines in your changes missing coverage. Please review.

Project coverage is 83.05%. Comparing base (c3a868f) to head (bbf0a86).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
ffi/src/lib.rs	0.00%	72 Missing ⚠️
ffi/src/engine_data.rs	0.00%	17 Missing ⚠️
ffi/src/error.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #550      +/-   ##
==========================================
- Coverage   83.45%   83.05%   -0.40%     
==========================================
  Files          74       74              
  Lines       16877    17009     +132     
  Branches    16877    17009     +132     
==========================================
+ Hits        14084    14127      +43     
- Misses       2135     2225      +90     
+ Partials      658      657       -1     

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[OussamaSaoudi-db]

Nit: Seems we're passing in ownership. Should we call this into_engine_data?