Implementation of histogram with sycl kernel

[AlexanderKalistratov]

Implemention of histogram with sycl_kernel. This PR adds generic histogram kernel which can be used in the future to implement other versions of histogram such as bincount, histogram2d and histogramdd or specialize kernel for special cases like uniform bins.

sycl kernel covers only specific datatype and usm memory types. Unsupported cases are covered by additional copy.