fixing memory leaks in cuSolver

[kswirydo]

I fixed several memory leaks (9 variables were not freed and 1 was freed without a guard).

At the end of hiopLinSolverSymSparseCUSOLVER::refactorizationSetupCusolverRf(), I added

 cudaFree(d_Lp_csr);
    cudaFree(d_Li_csr);
    cudaFree(d_Lx_csr);

    cudaFree(d_Up_csr);
    cudaFree(d_Ui_csr);
    cudaFree(d_Ux_csr);

In the ~hiopLinSolverSymSparseCUSOLVER(), I added

 if(refact_ == "rf") {
      cudaFree(d_P_);
      cudaFree(d_Q_);
      cudaFree(d_T_);
    }

In IR class, in hiopLinSolverSymSparseCUSOLVERInnerIR::~hiopLinSolverSymSparseCUSOLVERInnerIR(), I added:

    if(orth_option_ == "cgs2") {
      cudaFree(d_H_col_);
    }

[pelesh]

PNNL pipelines are broken, so they are giving false negatives.

CC @cameronrutherford

[cameronrutherford]

@jdmacam is helping with this. I think since they aren't a part of @LLNL I can't quite tag them/assign them to this PR

[pelesh]

This is safe to merge. PNNL pipelines have been fixed and all tests pass.