Add units to support AGS toolkit

Units_Engine/Convert/Density/Density.cs

@@ -159,6 +159,7 @@ public static double ToDensity(this double kilogramPerCubicMetres, object unit)
                     return UNU.DensityUnit.MilligramPerCubicMeter;
                 case DensityUnit.MilligramPerDeciliter:
                     return UNU.DensityUnit.MilligramPerDeciliter;
+                case "mgcaco3/l":
                 case DensityUnit.MilligramPerLiter:
                     return UNU.DensityUnit.MilligramPerLiter;
                 case DensityUnit.MilligramPerMilliliter:

Units_Engine/Convert/Molality/MillimolePerKilogram.cs

@@ -0,0 +1,57 @@
+/*
+ * This file is part of the Buildings and Habitats object Model (BHoM)
+ * Copyright (c) 2015 - 2024, the respective contributors. All rights reserved.
+ *
+ * Each contributor holds copyright over their respective contributions.
+ * The project versioning (Git) records all such contribution source information.
+ *                                           
+ *                                                                              
+ * The BHoM is free software: you can redistribute it and/or modify         
+ * it under the terms of the GNU Lesser General Public License as published by  
+ * the Free Software Foundation, either version 3.0 of the License, or          
+ * (at your option) any later version.                                          
+ *                                                                              
+ * The BHoM is distributed in the hope that it will be useful,              
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 
+ * GNU Lesser General Public License for more details.                          
+ *                                                                            
+ * You should have received a copy of the GNU Lesser General Public License     
+ * along with this code. If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.      
+ */
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UN = UnitsNet; //This is to avoid clashes between UnitsNet quantity attributes and BHoM quantity attributes
+using UnitsNet.Units;
+using System.ComponentModel;
+using BH.oM.Base.Attributes;
+using BH.oM.Quantities.Attributes;
+
+namespace BH.Engine.Units
+{
+    public static partial class Convert
+    {
+        [Description("Convert SI units (molePerKilogram) into millimolePerKilogram.")]
+        [Input("molePerKilograms", "The number of molePerKilogram to convert.", typeof(Molality))]
+        [Output("millimolePerKilograms", "The number of millimolePerKilogram.")]
+        public static double ToMillimolePerKilogram(this double molePerKilograms)
+        {
+            UN.QuantityValue qv = molePerKilograms;
+            return UN.UnitConverter.Convert(qv, MolalityUnit.MolePerKilogram, MolalityUnit.MillimolePerKilogram);
+        }
+
+        /***************************************************/
+
+        [Description("Convert millimolePerKilogram into SI units (molePerKilogram).")]
+        [Input("millimolePerKilograms", "The number of millimolePerKilograms to convert.")]
+        [Output("molePerKilograms", "The number of molePerKilograms.", typeof(Molality))]
+        public static double FromMillimolePerKilogram(this double millimolePerKilograms)
+        {
+            UN.QuantityValue qv = millimolePerKilograms;
+            return UN.UnitConverter.Convert(qv, MolalityUnit.MillimolePerKilogram, MolalityUnit.MolePerKilogram);
+        }
+    }
+}

Units_Engine/Convert/Molality/Molality.cs

@@ -110,6 +110,8 @@ public static double ToMolality(this double molePerKilograms, object unit)
                     return UNU.MolalityUnit.MolePerGram;
                 case MolalityUnit.MolePerKilogram:
                     return UNU.MolalityUnit.MolePerKilogram;
+                case MolalityUnit.MillimolePerKilogram:
+                    return UNU.MolalityUnit.MillimolePerKilogram;
                 default:
                     return null;
             }

Units_Engine/Units_Engine.csproj

@@ -21,7 +21,7 @@
   </Target>
 
   <ItemGroup>
-    <PackageReference Include="UnitsNet" Version="5.42.0" />
+    <PackageReference Include="UnitsNet" Version="5.55.0" />
   </ItemGroup>
 
   <ItemGroup>

Units_oM/Enums/Molality.cs

@@ -32,7 +32,8 @@ public enum MolalityUnit
     {
         Undefined = 0,
         MolePerKilogram = 1,
-        MolePerGram = 2
+        MolePerGram = 2,
+        MillimolePerKilogram = 3
     }
 }