latest core.matrix snapshot
remove extraneous protocol functions
latest vectorz snapshot
tighten vector slicing implementation
INDArray slicing
misc overrides and fixes
better matrix sub
better AScalar add and sub
better add! and sub!
tidy class names
tidying
with-clone usage, misc fixes
transpose uses view semantics
implement maths functions with vectorz operators
use latest core.matrix.stats
latest core.matrix.stats dep
fix element multiplication
add stats benchmarks
improved implementations and benchmarks for maths ops
misc edits