From 7a5dfa350b629e944d99b8d4b35a45325546c719 Mon Sep 17 00:00:00 2001
From: Yanzhang Wang <i8run15@gmail.com>
Date: Mon, 9 Oct 2017 08:20:01 -0400
Subject: [PATCH] feat: quantized tensor support (#1611)

* feat: quantized tensor support

QuantizedTensor inherits from Tensor with supporting part of methods.
The memory is allocated from native code, so it only matains a
pointer `getNativeStorage`.

Note,

We don't support automatically `free` method. Anyone using this method
should think about the memory lacking, especially for memory
optimization.

test: quantized tensor tests

* fix: test case failed on spark 1.6