refactor: change utility classes to internal and update readme

Barchart.Common/Utilities/CurrencyExchangePair.cs

@@ -9,19 +9,19 @@ namespace Barchart.Common.Utilities;
 /// <summary>
 ///     Represents a pair of currencies for which an exchange rate is defined.
 /// </summary>
-public sealed class CurrencyExchangePair : IEquatable<CurrencyExchangePair>
+internal class CurrencyExchangePair : IEquatable<CurrencyExchangePair>
 {
     #region Properties
 
     /// <summary>
     ///     The source currency.
     /// </summary>
-    public Currency Source { get; }
+    internal Currency Source { get; }
 
     /// <summary>
     ///     The target currency.
     /// </summary>
-    public Currency Target { get; }
+    internal Currency Target { get; }
 
     #endregion
 
@@ -39,7 +39,7 @@ public sealed class CurrencyExchangePair : IEquatable<CurrencyExchangePair>
     ///<exception cref="ArgumentNullException">
     ///     Thrown when <paramref name="source"/> or <paramref name="target"/> is <see langword="null"/>.
     /// </exception>
-    public CurrencyExchangePair(Currency source, Currency target)
+    internal CurrencyExchangePair(Currency source, Currency target)
     {
         ArgumentNullException.ThrowIfNull(source, nameof(source));
         ArgumentNullException.ThrowIfNull(target, nameof(target));

Barchart.Common/Utilities/CurrencyInfo.cs

@@ -3,24 +3,24 @@ namespace Barchart.Common.Utilities;
 /// <summary>
 ///     Class representing currency information.
 /// </summary>
-public class CurrencyInfo
+internal class CurrencyInfo
 {
     #region Properties
 
     /// <summary>
     ///     The description of the currency.
     /// </summary>
-    public string Description { get; }
+    internal string Description { get; }
 
     /// <summary>
     ///     The precision of the currency.
     /// </summary>
-    public int Precision { get; }
+    internal int Precision { get; }
 
     /// <summary>
     ///     The alternate description of the currency.
     /// </summary>
-    public string AlternateDescription { get; }
+    internal string AlternateDescription { get; }
 
     #endregion
 
@@ -41,7 +41,7 @@ public class CurrencyInfo
     /// <exception cref="ArgumentException">
     ///     Thrown when <paramref name="description"/> or <paramref name="alternateDescription"/> is <see langword="null"/> or empty.
     /// </exception>
-    public CurrencyInfo(string description, int precision, string alternateDescription)
+    internal CurrencyInfo(string description, int precision, string alternateDescription)
     {
         ArgumentException.ThrowIfNullOrEmpty(description);
         ArgumentException.ThrowIfNullOrEmpty(alternateDescription);
@@ -50,6 +50,6 @@ public CurrencyInfo(string description, int precision, string alternateDescripti
         Precision = precision;
         AlternateDescription = alternateDescription;
     }
+
     #endregion
-
 }

README.md

@@ -13,7 +13,6 @@ A _public_ library of .NET utilities.
 - **Core**: Core classes providing various functionalities.
 - **Extensions**: Extensions used to extend the functionality of the data types.
 - **Interfaces**: Common interfaces meant to be implemented by other classes to provide a common functionalities.
-- **Utilities**: Helper classes used throughout the library.
 
 ## Installation