feat(SetpointManagerMixedAir): add IB_SetpointManagerMixedAir

src/Ironbug.HVAC/SetpointManagers/IB_SetpointManagerMixedAir.cs

@@ -0,0 +1,31 @@
+using Ironbug.HVAC.BaseClass;
+using OpenStudio;
+using System;
+
+namespace Ironbug.HVAC
+{
+    public class IB_SetpointManagerMixedAir : IB_SetpointManager
+    {
+        protected override Func<IB_ModelObject> IB_InitSelf => () => new IB_SetpointManagerMixedAir();
+
+        private static SetpointManagerMixedAir NewDefaultOpsObj(Model model) => new SetpointManagerMixedAir(model);
+        public IB_SetpointManagerMixedAir() : base(NewDefaultOpsObj(new Model()))
+        {
+
+        } 
+
+        public override HVACComponent ToOS(Model model)
+        {
+            return base.OnNewOpsObj(NewDefaultOpsObj, model);
+        }
+    }
+
+    public sealed class IB_SetpointManagerMixedAir_FieldSet
+        : IB_FieldSet<IB_SetpointManagerMixedAir_FieldSet, SetpointManagerMixedAir>
+    {
+        private IB_SetpointManagerMixedAir_FieldSet() { }
+
+    }
+
+
+}