Diagnostics toolbox: ``display_near_parallel_constraints()`` does not distinguish between equality and inequality constraints

[OOAmusat]

Running the diagnostics toolbox on a model with inequality constraints enforcing variable bounds is throwing up display_near_parallel_constraints() warnings:

MWE:

 @m.Constraint(m.periods)
    def eq_hw_tank_temperature_lb(m, key):
        return m.fs[key].hw_tank.T[0] >= (50 + 273.15) * pyunits.K

    @m.Constraint(m.periods)
    def eq_hw_tank_temperature_ub(m, key):
        return m.fs[key].hw_tank.T[0] <= (90 + 273.15) * pyunits.K

Diagnostics box output

====================================================================================
>>> dt.display_near_parallel_constraints()
WARNING: model contains export suffix 'scaling_factor' that contains 144
component keys that are not exported as part of the NL file.  Skipping.
====================================================================================
The following pairs of constraints are nearly parallel:

    eq_hw_tank_temperature_lb[0], eq_hw_tank_temperature_ub[0]
    eq_hw_tank_temperature_lb[1], eq_hw_tank_temperature_ub[1]
    eq_hw_tank_temperature_lb[2], eq_hw_tank_temperature_ub[2]
    eq_hw_tank_temperature_lb[3], eq_hw_tank_temperature_ub[3]
    eq_hw_tank_temperature_lb[4], eq_hw_tank_temperature_ub[4]
    eq_hw_tank_temperature_lb[5], eq_hw_tank_temperature_ub[5]
    eq_hw_tank_temperature_lb[6], eq_hw_tank_temperature_ub[6]
    eq_hw_tank_temperature_lb[7], eq_hw_tank_temperature_ub[7]
    eq_hw_tank_temperature_lb[8], eq_hw_tank_temperature_ub[8]
    eq_hw_tank_temperature_lb[9], eq_hw_tank_temperature_ub[9]
    eq_hw_tank_temperature_lb[10], eq_hw_tank_temperature_ub[10]
    eq_hw_tank_temperature_lb[11], eq_hw_tank_temperature_ub[11]
    eq_hw_tank_temperature_lb[12], eq_hw_tank_temperature_ub[12]
    eq_hw_tank_temperature_lb[13], eq_hw_tank_temperature_ub[13]
    eq_hw_tank_temperature_lb[14], eq_hw_tank_temperature_ub[14]
    eq_hw_tank_temperature_lb[15], eq_hw_tank_temperature_ub[15]
    eq_hw_tank_temperature_lb[16], eq_hw_tank_temperature_ub[16]
    eq_hw_tank_temperature_lb[17], eq_hw_tank_temperature_ub[17]
    eq_hw_tank_temperature_lb[18], eq_hw_tank_temperature_ub[18]
    eq_hw_tank_temperature_lb[19], eq_hw_tank_temperature_ub[19]
    eq_hw_tank_temperature_lb[20], eq_hw_tank_temperature_ub[20]
    eq_hw_tank_temperature_lb[21], eq_hw_tank_temperature_ub[21]
    eq_hw_tank_temperature_lb[22], eq_hw_tank_temperature_ub[22]
    eq_hw_tank_temperature_lb[23], eq_hw_tank_temperature_ub[23]

According to @andrewlee94, this issue is possibly because we do not distinguish between equality and inequality constraints in the check.