Allow boolean constants in errorlevel and errorcode

[mla2001]

Initial Checks

• I have searched existing issues for duplicates
• I have read the documentation

Summary

According to g4 grammar, boolean constants should be accepted as errorlevel/errorode.

Reproducible Example

    script = """
        define hierarchical ruleset hr_test (variable rule Id_1) is
            B = C - D errorcode true errorlevel true;
            N = A - L errorcode false errorlevel false
        end hierarchical ruleset;

        DS_r <- check_hierarchy(DS_1, hr_test rule Id_1);
    """

    script = ASTString().render(create_ast(script))

    data_structures = {
        "datasets": [
            {
                "name": "DS_1",
                "DataStructure": [
                    {"name": "Id_1", "type": "String", "role": "Identifier", "nullable": False},
                    {"name": "Id_2", "type": "String", "role": "Identifier", "nullable": False},
                    {"name": "Me_1", "type": "Integer", "role": "Measure", "nullable": True},
                ],
            }
        ]
    }

    data_df = pd.DataFrame(
        {
            "Id_1": ["B", "C", "D", "N", "A", "B", "C", "D", "C"],
            "Id_2": ["A", "B", "C", "D", "E", "F", "G", "H", "I"],
            "Me_1": [100, 110, 20, 200, 199, None, 120, 110, None],
        }
    )

    datapoints = {"DS_1": data_df}

    run_result = run(script=script, data_structures=data_structures, datapoints=datapoints)

    print(run_result)

Expected vs Actual

TBD

vtlengine version

1.6.0

Python version

Any

OS

Any

[javihern98]

Need to expand this issue to "Allow all types of constants in errorcode and errorlevel" and make dedicated tests for each case