[foreign] Feature request: Scope.allocate*() with given alignment

[Lev Serebryakov]

 I'm sure, that foreign interface will be used A LOT to call
high-performance mathematical code, it will be very useful to allocate
arrays and buffers with specified alignment to allow usage of SIMD of
different level. Looks like, now it is impossible to control alignment
of allocation.

-- 
// Black Lion AKA Lev Serebryakov