arm & arm64 support

[lshamis]

arm & arm64 support are mentioned in the README's TODO section. I'm can't use this library until that is added :(
I didn't see an active issue tracker for it, so I figured I'd make one.

[hnes]

Thank you very much for opening this issue tracker, @lshamis ;-)

[darbee]

@lshamis so ,where is the arm 64 version? Have you make a pull request?

[artificial-lshamis]

@darbee, this is a request thread. I don't have the background knowledge in arm assembly to add support.

[techbech]

@postwait has made a pull request with support for ARM64 🎉
Please go to #38 and help us test it if you can

[ScarletCarpet]

@postwait has made a pull request with support for ARM64
Please go to #38 and help us test it if you can

thanks so much