MassConcentration: Add ounce per gallon units (#948)

Co-authored-by: Gianni Declercq <[email protected]>
Co-authored-by: Andreas Gullberg Larsen <[email protected]>

Author: 3 people

Common/UnitDefinitions/MassConcentration.json

@@ -238,6 +238,30 @@
           "Abbreviations": [ "ppg (U.S.)" ]
         }
       ]
+    },
+	{
+      "SingularName": "OuncePerUSGallon",
+      "PluralName": "OuncesPerUSGallon",
+      "FromUnitToBaseFunc": " x/0.1335264711843",
+      "FromBaseToUnitFunc": "x*0.1335264711843",
+      "Localization": [
+        {
+          "Culture": "en-US",
+          "Abbreviations": [ "oz/gal (U.S.)" ]
+        }
+      ]
+    },
+	{
+      "SingularName": "OuncePerImperialGallon",
+      "PluralName": "OuncesPerImperialGallon",
+      "FromUnitToBaseFunc": " x/0.1603586720609",
+      "FromBaseToUnitFunc": "x*0.1603586720609",
+      "Localization": [
+        {
+          "Culture": "en-US",
+          "Abbreviations": [ "oz/gal (imp.)" ]
+        }
+      ]
     },
     {
       "SingularName": "PoundPerImperialGallon",

UnitsNet.NanoFramework/GeneratedCode/Quantities/MassConcentration.g.cs

@@ -79,6 +79,10 @@ public class MassConcentrationTests : MassConcentrationTestsBase
         protected override double PoundsPerCubicInchInOneKilogramPerCubicMeter => 3.61272923e-5;
         protected override double PoundsPerUSGallonInOneKilogramPerCubicMeter => 8.3454045e-3;
         protected override double SlugsPerCubicFootInOneKilogramPerCubicMeter => 0.00194032;
+
+        protected override double OuncesPerImperialGallonInOneKilogramPerCubicMeter => 0.1603586720609;
+
+        protected override double OuncesPerUSGallonInOneKilogramPerCubicMeter => 0.1335264711843;
         #endregion
 
         [Theory]