Add project files.

Core.Cerberos.Adapters/Common/Constants/AccessLevelEnum.cs

@@ -0,0 +1,32 @@
+// ***********************************************************************
+// <copyright file="AccessLevelEnum.cs">
+//     Heath
+// </copyright>
+// ***********************************************************************
+
+using System.Text.Json.Serialization;
+
+namespace Core.Cerberos.Adapters.Common.Constants
+{
+    /// <summary>
+    /// Specifies different access level for a permission.
+    /// </summary>
+    [JsonConverter(typeof(JsonStringEnumConverter))]
+    public enum AccessLevelEnum
+    {
+        /// <summary>
+        /// The object is accessible for reading.
+        /// </summary>
+        Read = 0,
+
+        /// <summary>
+        /// The object is accessible for writing.
+        /// </summary>
+        Write = 1,
+
+        /// <summary>
+        /// The object is accessible for all operations.
+        /// </summary>
+        All = 2
+    }
+}