fix #651  add con add bn relu op test, modify executor for test

add FPGA interfaces

optimize gemm

增加可被x86编译运行的量化脚本,并增加量化脚本说明文档.

add new param definitions for FPGA ops

update FPGA ops declaration in types h and cpp file

Unify FUSION_CONVADDRELU_OP usage

fix android toolchain

fix #633 modify test cmake

fix #631

fix #628 modify ios build cmake tool chain

modify cmake files for FPGA track

 add FPGA ops declaration and key list