use a macro to control whether use std::exception

control compile commands by build mode

fix #380 format files 

shrink so size

# Conflicts:
#	CMakeLists.txt
#	src/framework/dim.h
#	src/framework/program/program-optimize/node.h

fix #374 rewrite some code in io.cpp & fix CMakeLists.txt in test

# Conflicts:
#	CMakeLists.txt
#	src/framework/dim.h
#	src/framework/program/program-optimize/node.h

# Conflicts:
#	CMakeLists.txt
#	src/framework/dim.h
#	src/framework/program/program-optimize/node.h

fix #375 remove unused code, format files

fix #371 add openmp support (disabled by default)