ckia_121.1

The idea with this release is that this repo will take over the job of publishing pre-built libraries.

The ckia_sys repo has been deleted in favor of this. The ckia_sys crate has been moved to https://github.com/coderedart/ckia

This release consists of a new function called sk_icu_set_icudtl_dat that allows us to set icudtl.dat file on windows without writing to filesystem.

It also contains fixes for a bunch of functions related to Metal. Although, we don't really support macos atm.