making the TQuantity Create(double, UnitKey) function public (#1611)

making the `TQuantity Create(double, UnitKey)` function public
(`IQuantityOfType` / `IQuantityInstanceInfo`)

Author: lipchev

UnitsNet/IQuantity.cs

@@ -134,7 +134,13 @@ public interface IQuantityOfType<out TQuantity> : IQuantity
         where TQuantity : IQuantity
     {
 #if NET
-        internal static abstract TQuantity Create(double value, UnitKey unit);
+        /// <summary>
+        ///     Creates an instance of the quantity from a specified value and unit.
+        /// </summary>
+        /// <param name="value">The numerical value of the quantity.</param>
+        /// <param name="unit">The unit of the quantity.</param>
+        /// <returns>An instance of the quantity with the specified value and unit.</returns>
+        public static abstract TQuantity Create(double value, UnitKey unit);
 #else
         /// <inheritdoc cref="IQuantity.QuantityInfo"/>
         new IQuantityInstanceInfo<TQuantity> QuantityInfo { get; }

UnitsNet/IQuantityInfo.cs

@@ -121,6 +121,12 @@ interface IQuantityInstanceInfo<out TQuantity> : IQuantityInfo
 {
     /// <inheritdoc cref="IQuantityInfo.Zero" />
     new TQuantity Zero { get; }
-
-    internal TQuantity Create(double value, UnitKey unitKey);
+    
+    /// <summary>
+    ///     Creates an instance of the quantity from a specified value and unit.
+    /// </summary>
+    /// <param name="value">The numerical value of the quantity.</param>
+    /// <param name="unitKey">The unit key of the quantity.</param>
+    /// <returns>An instance of the quantity with the specified value and unit.</returns>
+    public TQuantity Create(double value, UnitKey unitKey);
 }