WASM32 support with regression fix

[Oppen]

This reverts commit 23d941f and applies the following changes on top to fix a performance regression caused by the previously reverted commit:

• Re-add support for mimalloc to the new subproject that creates the runnable;
• Use a larger buffer for writing the memory and execution traces (5MiB and 3MiB respectively, so a whole number of fields fit between flushes);
• Extend IAI benchmarks a bit to consider these writes.

Co-authored-by: @tdelabro

[codecov]

Codecov Report

Merging #893 (c7e2d37) into main (e32e435) will decrease coverage by 0.08%.
The diff coverage is 88.17%.

@@            Coverage Diff             @@
##             main     #893      +/-   ##
==========================================
- Coverage   97.47%   97.39%   -0.08%     
==========================================
  Files          69       69              
  Lines       29071    29142      +71     
==========================================
+ Hits        28336    28382      +46     
- Misses        735      760      +25     

Impacted Files	Coverage Δ
cairo-vm-cli/src/main.rs	25.77% <0.00%> (ø)
...t_processor/builtin_hint_processor/blake2s_hash.rs	100.00% <ø> (ø)
..._processor/builtin_hint_processor/blake2s_utils.rs	99.74% <ø> (ø)
...int_processor/builtin_hint_processor_definition.rs	98.69% <ø> (ø)
...uiltin_hint_processor/cairo_keccak/keccak_hints.rs	93.91% <ø> (ø)
...rocessor/builtin_hint_processor/dict_hint_utils.rs	99.23% <ø> (+<0.01%)	⬆️
...t_processor/builtin_hint_processor/dict_manager.rs	96.73% <ø> (ø)
...int_processor/builtin_hint_processor/hint_utils.rs	94.59% <ø> (ø)
...t_processor/builtin_hint_processor/keccak_utils.rs	100.00% <ø> (ø)
...int_processor/builtin_hint_processor/math_utils.rs	97.95% <ø> (-0.01%)	⬇️
... and 58 more

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[fmoletta]

LGTM

[tdelabro]

🔥