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New single-duct constant volume air terminal without reheat

The existing AirTerminal:SingleDuct:Uncontrolled is different from all other terminal units. It only has a single node (not an inlet and outlet) and it sits directly on the zone equipment list instead or being referenced by a ZoneHVAC:AirDistributionUnit object. This causes fits for interfaces, and it prevents this terminal unit from using the simple duct-leakage features in ZoneHVAC:AirDistributionUnit.

Propose adding a new terminal unit type AirTerminal:SingleDuct:ConstantVolume:NoReheat that has an inlet and outlet node and sits under an air distribution unit. Then deprecate the old AirTerminal:SingleDuct:Uncontrolled object.

Reference issue #4988
https://github.com/NREL/EnergyPlus/issues/4988

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