AirTerminalDualDuctVAV: Design Specification Outdoor Air field should be replaced by Control For Outdoor Air

Enhancement Request

AirTerminalDualDuctVAV has a field "Design Specification Outdoor Air" which should be replaced by "Control For Outdoor Air", and if Yes it should be populated from the Space/SpaceType.

Just like AirTerminalDualDuctVAVOutdoorAir.

Detailed Description

Current

OS:AirTerminal:DualDuct:VAV,
  [...]
  A7 , \field Design Specification Outdoor Air Object
       \type object-list
       \object-list DesignSpecificationOutdoorAirNames
       \note When the name of a DesignSpecification:OutdoorAir object is entered, the terminal
       \note unit will increase flow as needed to meet this outdoor air requirement.
       \note If Outdoor Air Flow per Person is non-zero, then the outdoor air requirement will
       \note be computed based on the current number of occupants in the zone.
       \note At no time will the supply air flow rate exceed the value for Maximum Air Flow Rate.
       \note If this field is blank, then the terminal unit will not be controlled for outdoor air flow.

Possible Implementation

Replace with:

OS:AirTerminal:DualDuct:VAV,
  [...]
  A7 , \field Control For Outdoor Air
       \note This field replaces the E+ field Design Specification Outdoor Air Object Name
       \note Refer to OpenStudio API for details
       \type choice
       \key Yes
       \key No
       \required-field
       \note If Yes and the DSOA Outdoor Air Flow per Person is non-zero, then the outdoor air requirement will
       \note be computed based on the current number of occupants in the zone.
       \note At no time will the supply air flow rate exceed the value for Maximum Air Flow Rate.
       \note If this field is No, then the terminal unit will not be controlled for outdoor air flow.

This change requires breaking API.