* add tool chain setting cmake file for hi3559a chip series

* add tool chain setting cmake file for hi3519 chip series

* add tool chain setting cmake file for hi35xx(forget now) chip series

* move tool chain cmake files(for apple series) and pi3 to this folder

* add tool chain setting cmake file for ubuntu host gcc/g++

* delete cmake files for apple series

* add building command for hisiv300/hisiv500/himix100/host linux.

* add macro defines

* add aarch64 linux gnu toolchain cmake file

* add arm-linux-gnueabi cmake files(softfp and hard)

* add arm-linux-gnueabi, arm-linux-gnueabihf, aarch64-linux-gnu building session

* fix error path in travis-ci script

* add ANDRIOD define for avoid building tools

* print benchmark information for every layer, especially for CONVOLUTION

* print benchmark information for every layer, especially for CONVOLUTION, for cross-platform.

* move the function implementation to cpp file to avoid multiple definitions

* [fix-compile-warnings] fix compiler warnings, and add werror in CMakeLists.txt

* [fix-compile-warnings] fix compiler warnings, remote ycm_extra_conf.py