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

This reverts commit 07c53c343b670bf09c77b7219b2c5e81adbadf59.

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