Implement highly-parallel version of runtime

[purefunctor]

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 90.93079% with 38 lines in your changes missing coverage. Please review.

Project coverage is 82.85%. Comparing base (a8c7d6a) to head (a5fa7a9). Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/building/src/parallel_runtime.rs	87.54%	29 Missing and 6 partials :warning:
crates/building/src/module_name_map.rs	0.00%	3 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #31      +/-   ##
==========================================
+ Coverage   82.36%   82.85%   +0.49%     
==========================================
  Files          36       37       +1     
  Lines        6204     6603     +399     
  Branches     6204     6603     +399     
==========================================
+ Hits         5110     5471     +361     
- Misses        943      975      +32     
- Partials      151      157       +6     

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