Fixes # .

Summary/Motivation:

While working with @AnhTran01, we realized that the LegacySolverWrapper in pyomo.contrib.solver was not compatible with the old solver regression tests in pyomo.solvers. This PR expands the functionality so that new solvers wrapped in the LegacySolverWrapper can be run through that test suite.

Changes proposed in this PR:

• Make suffix_generator compatible with kernel models
• Include _capabilities, warm_start_capable, and default_variable_value in the Legacy API
• Expose an options ConfigDict that is compatible with the Bunch/Options API
• Modify timing_info output so that it doesn't preclude pickling the legacy results object

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