Some updates for neon64 instruction

* Adding Math performance test
* Recognizing android arm64 device correctly and using NEON64 instruction directly for android arm64 device.
* Workaround for missing `__ctype_get_mb_cur_max` function in ndk-r10c when using `arm64-v8a`
* Adding UnitTest for MathUtil, for comparing the results of MathUtilC and MathUtilNeon/MathUtilNeon64
* Bug fix of `MathUtilNeon64::crossVec3` in PR #9202