Ranged LinearStandardFormCompiler

[bknueven]

Fixes # N/A

Summary/Motivation:

LinearStandardFormCompiler is a great tool for rapidly expanding a Pyomo model into the form need for (mixed-integer) linear programming solvers. Many of these solvers also handle ranged (linear) constraints. This PR would augment the LinearStandardFormCompiler to return ranged linear constraints directly as part of the LinearStandardFormInfo when the new option keep_range_constraints=True.

Changes proposed in this PR:

• Add keep_range_constraints to LinearStandardFormCompiler and compile range constraints appropriately
• Bugfix for constraints with +/-inf
• Bugfix: allow TemplateVarRecorder (and LinearStandardFormCompiler) to correctly handle pyomo.kernel variables (happy to drop this from this PR -- this change was needed to make the Xpress tests pass in [Depends on #3960 and #3963] Performance enhancements for XpressDirect / XpressPersistent for large LPs / MIPs #3879)

This PR was created with the help of GitHub Copilot CLI.

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