Macos universal fat binaries (ARM and x86) from arm macos

Updates all dependencies to be compiled on arm macos. Most fixes is to explicitly ask for SSE optimizations to be turned off.

Notes:

• Need to test this on x86 compile
• ARM compile was only triggered on "universal" cmake bynaries (3.19.20201211-ge9a613b)
• Python related deps cannot be compiled yet (updating python to latest version will solve this, my patches for 3.8 were not sucessful)
• missing Libheif arm compilation (working on a patch)

Things to do

• Finish all arm dependencies
• Make krita build on arm (currently only x86 is forced
• Crosscompile to x86 on the arm machine
• generate universal binary using lipo

Test Plan

(Tell us how to test the changes you made.)

Formalities Checklist

• I confirmed this builds.
• I made sure my code conforms to the standards set in the HACKING file.
• I can confirm the code is licensed and attributed appropriately, and that unattributed code is mine, as per KDE Licensing Policy.