Expose buffer operations

[bjchambers]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

I'd like to take the bitwise and (or) of sliced buffers without needing to materialize the offsets. This can be achieved within Arrow using buffer_bin_and (buffer_bin_or), but those methods are not exposed.

It should be possible to use bit_slice to slice a buffer and then apply them, but (1) if the offset is not aligned it needs to materialize the resulting buffer and (2) if the offset is aligned it doesn't work due to #807.

Describe the solution you'd like
Expose the buffer_bin_and, buffer_bin_or and other possibly useful methods for working with buffers.

Describe alternatives you've considered

Using bit_slice and &, but that has the problems as noted.

Additional context
Add any other context or screenshots about the feature request here.