Anasazi: add an early warning about small subspace dimensions
Created by: aprokop
If a user specifies a "Maximum Subspace Dimension" to be too small, and then during the solution the solver restarts, it will fails with a "cryptic" message
Throw test that evaluated to true: state.curDim <= d_restartDim
This does not actually tell a user what exactly is happening, and how to address the problem. This patch tries to address it.