Description

Build Metacall with Web assembly support for MacOS

Type of change

[x] I have performed a self-review of my own code.
[x] I have commented my code, particularly in hard-to-understand areas.
[ ] I have made corresponding changes to the documentation.
[x] My changes generate no new warnings.
[x] I have added tests/screenshots (if any) that prove my fix is effective or that my feature works.
[x] I have tested the tests implicated (if any) by my own code and they pass (make test or ctest -VV -R <test-name>).
[x] If my change is significant or breaking, I have passed all tests with ./docker-compose.sh test &> output and attached the