add macro to enable neon on IOS
move code to mathUtil.cp
move sse code to mathUtil.cpp
enable neon on IOS and refactor code
android can link with neon(neon code has some bugs)
refactor neon code
add neon64 implementation
neon works on android(only on armeabi-v7a)
reverse target=android-10 on android
Merge pull request #8158 from dabingnn/v3_neon

V3 neon