Ios build improvements

[donpui]

Refactoring changes on main IOS build PR #203:

• CI
• Cross compilation arm/amd (m1/intel)

• documentation

Code Review Checklist

• [ ] Description accurately reflects what changes are being made.
• [ ] Description explains why the changes are being made (or references an issue containing one).
• [ ] The PR appropriately sized.
• [ ] New code has enough tests.
• [ ] New code has enough documentation to answer "how do I use it?" and "what does it do?".
• [ ] Existing documentation is up-to-date, if impacted.