Is your feature request related to a problem? Please describe.
Currently we have SIMD acceleration for x86 only. ARM has its own standardised SIMD intrinsics set, called NEON. Supporting it (starting with 32-bit ARM) would be very beneficial.

Describe the solution you'd like
This should be coordinated with #14, since both should work on 32-bit architectures. Similar interfaces would be used, only the classifier implementations would be different (since they need different instruction sets).

Additional context
Find NEON intrinsics documentation here.