Revert "Revert "Revert "StateBase no longer use Eigen"""
Revert "Revert "Revert "StateBase no longer use Eigen"""

This reverts commit e354729fc15685ed3268129380bae8b997d01f78.

zhouyan/vSMC,zhouyan/vSMC,zhouyan/vSMC,zhouyan/vSMC