[DOC] Document missing solver settings for LP/MIP

[rg20]

The following parameters are not documented in https://docs.nvidia.com/cuopt/user-guide/latest/lp-milp-settings.html

CUOPT_PRIMAL_INFEASIBLE_TOLERANCE
CUOPT_DUAL_INFEASIBLE_TOLERANCE
CUOPT_PDLP_SOLVER_MODE (typo)
CUOPT_MIP_INTEGRALITY_TOLERANCE

[Kh4ster]

As mentioned by Chris We intentionally did not document PRIMAL_INFEASIBILITY_TOLERANCE and DUAL_INFEASIBILITY_TOLERANCE as these parameters are deprecated and likely to be removed in a future version.