Adds IMacro, IMacroProperty and IMacroPropertyType interfaces.

Adds Macro and MacroProperty implementations U4-928.
Adds enums used for MacroTypes and MacroPropertyTypeBaseTypes

src/Umbraco.Core/Models/Macro.cs

@@ -0,0 +1,128 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.Serialization;
+using Umbraco.Core.Models.EntityBase;
+
+namespace Umbraco.Core.Models
+{
+    /// <summary>
+    /// Represents a Macro
+    /// </summary>
+    [Serializable]
+    [DataContract(IsReference = true)]
+    public class Macro : Entity, IMacro
+    {
+        /// <summary>
+        /// Gets or sets the alias of the Macro
+        /// </summary>
+        [DataMember]
+        public string Alias { get; set; }
+
+        /// <summary>
+        /// Gets or sets the name of the Macro
+        /// </summary>
+        [DataMember]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or sets a boolean indicating whether the Macro can be used in an Editor
+        /// </summary>
+        [DataMember]
+        public bool UseInEditor { get; set; }
+
+        /// <summary>
+        /// Gets or sets the Cache Duration for the Macro
+        /// </summary>
+        [DataMember]
+        public int CacheDuration { get; set; }
+
+        /// <summary>
+        /// Gets or sets a boolean indicating whether the Macro should be Cached by Page
+        /// </summary>
+        [DataMember]
+        public bool CacheByPage { get; set; }
+
+        /// <summary>
+        /// Gets or sets a boolean indicating whether the Macro should be Cached Personally
+        /// </summary>
+        [DataMember]
+        public bool CacheByMember { get; set; }
+
+        /// <summary>
+        /// Gets or sets a boolean indicating whether the Macro should be rendered in an Editor
+        /// </summary>
+        [DataMember]
+        public bool DontRender { get; set; }
+
+        /// <summary>
+        /// Gets or sets the path to the script file in use
+        /// </summary>
+        /// <remarks>Optional: Can only be one of three Script, Python or Xslt</remarks>
+        [DataMember]
+        public string ScriptFile { get; set; }
+
+        /// <summary>
+        /// Gets or sets the name of the assembly, which should be used by the Macro
+        /// </summary>
+        /// <remarks>Will usually only be filled if the ScriptFile is a Usercontrol</remarks>
+        [DataMember]
+        public string ScriptAssembly { get; set; }
+
+        /// <summary>
+        /// Gets or set the path to the Python file in use
+        /// </summary>
+        /// <remarks>Optional: Can only be one of three Script, Python or Xslt</remarks>
+        [DataMember]
+        public string Python { get; set; }
+
+        /// <summary>
+        /// Gets or sets the path to the Xslt file in use
+        /// </summary>
+        /// <remarks>Optional: Can only be one of three Script, Python or Xslt</remarks>
+        [DataMember]
+        public string Xslt { get; set; }
+
+        /// <summary>
+        /// Gets or sets a list of Macro Properties
+        /// </summary>
+        [DataMember]
+        public List<IMacroProperty> Properties { get; set; }
+
+        /// <summary>
+        /// Overridden this method in order to set a random Id
+        /// </summary>
+        internal override void AddingEntity()
+        {
+            base.AddingEntity();
+
+            var random = new Random();
+            Id = random.Next(10000, int.MaxValue);
+        }
+
+        /// <summary>
+        /// Returns an enum <see cref="MacroTypes"/> based on the properties on the Macro
+        /// </summary>
+        /// <returns><see cref="MacroTypes"/></returns>
+        public MacroTypes FindMacroType()
+        {
+            if (!string.IsNullOrEmpty(Xslt))
+                return MacroTypes.Xslt;
+            
+            if (!string.IsNullOrEmpty(Python))
+                return MacroTypes.Python;
+            
+            if (!string.IsNullOrEmpty(ScriptFile))
+                return MacroTypes.Script;
+            
+            if (!string.IsNullOrEmpty(ScriptFile) && ScriptFile.ToLower().IndexOf(".ascx", StringComparison.InvariantCultureIgnoreCase) > -1)
+            {
+                return MacroTypes.UserControl;
+            }
+            
+            if (!string.IsNullOrEmpty(ScriptFile) && !string.IsNullOrEmpty(ScriptAssembly))
+                return MacroTypes.CustomControl;
+
+            return MacroTypes.Unknown;
+        }
+    }
+}