Improve documentation and minor refactors.

[azteca1998]

This PR makes it so that everything public is documented. It also implements a few refactors, mostly to reduce the amount of stuff to document.

Checklist

• [ ] Linked to Github Issue
• [ ] Unit tests added
• [ ] Integration tests added.
• [ ] This change requires new documentation.
  • [ ] Documentation has been added/updated.

[github-actions[bot]]

Benchmarking results

Benchmark for program factorial_2M

Open benchmarks

Command	Mean [s]	Min [s]	Max [s]	Relative
Cairo-vm (Rust, Cairo 1)	12.994 ± 0.082	12.909	13.181	29.90 ± 0.20
cairo-native (embedded AOT)	2.398 ± 0.011	2.381	2.410	5.52 ± 0.03
cairo-native (embedded JIT using LLVM's ORC Engine)	1.592 ± 0.013	1.570	1.614	3.66 ± 0.03
cairo-native (standalone AOT)	0.660 ± 0.001	0.658	0.660	1.52 ± 0.00
cairo-native (standalone AOT with -march=native)	0.435 ± 0.001	0.434	0.437	1.00

Benchmark for program fib_2M

Open benchmarks

Command	Mean [s]	Min [s]	Max [s]	Relative
Cairo-vm (Rust, Cairo 1)	12.400 ± 0.065	12.360	12.583	2036.87 ± 37.69
cairo-native (embedded AOT)	1.125 ± 0.014	1.107	1.152	184.84 ± 3.97
cairo-native (embedded JIT using LLVM's ORC Engine)	1.116 ± 0.005	1.112	1.128	183.38 ± 3.35
cairo-native (standalone AOT)	0.006 ± 0.000	0.006	0.007	1.00
cairo-native (standalone AOT with -march=native)	0.006 ± 0.000	0.006	0.007	1.04 ± 0.03

Benchmark for program logistic_map

Open benchmarks

Command	Mean [s]	Min [s]	Max [s]	Relative
Cairo-vm (Rust, Cairo 1)	1.903 ± 0.011	1.890	1.928	28.49 ± 0.18
cairo-native (embedded AOT)	1.369 ± 0.010	1.353	1.382	20.51 ± 0.15
cairo-native (embedded JIT using LLVM's ORC Engine)	1.214 ± 0.007	1.203	1.230	18.18 ± 0.11
cairo-native (standalone AOT)	0.107 ± 0.000	0.107	0.109	1.61 ± 0.01
cairo-native (standalone AOT with -march=native)	0.067 ± 0.000	0.067	0.067	1.00

[codecov-commenter]

Codecov Report

Attention: 106 lines in your changes are missing coverage. Please review.

Comparison is base (8b49c84) 77.69% compared to head (5393359) 77.70%.

:exclamation: Current head 5393359 differs from pull request most recent head d86e2f0. Consider uploading reports for the commit d86e2f0 to get more accurate results

Files	Patch %	Lines
src/execution_result.rs	14.89%	40 Missing :warning:
src/executor/aot.rs	0.00%	25 Missing :warning:
src/values.rs	28.57%	10 Missing :warning:
src/executor/jit.rs	77.27%	5 Missing :warning:
src/error/executor.rs	0.00%	4 Missing :warning:
src/cache/aot.rs	0.00%	3 Missing :warning:
src/error/compile.rs	66.66%	3 Missing :warning:
src/utils.rs	57.14%	3 Missing :warning:
src/bin/cairo-native-compile.rs	0.00%	2 Missing :warning:
src/bin/cairo-native-dump.rs	0.00%	2 Missing :warning:
... and 6 more

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #444   +/-   ##
=======================================
  Coverage   77.69%   77.70%           
=======================================
  Files         109      108    -1     
  Lines       31781    31719   -62     
=======================================
- Hits        24692    24646   -46     
+ Misses       7089     7073   -16     

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