OpenHarmony support

[laxian]

As the title indicates, since Huawei is prohibited from using Android, Huawei phones have now completely transitioned to the OpenHarmony operating system. Given that Huawei phones have an extensive user base, it is essential to support OpenHarmony.

[alexmoon]

I would be open to a PR for OpenHarmony support, as long as it can fit nicely with the other platforms. I don't have access to any OpenHarmony hardware so it's not something that I can test or support myself.