Added project templates, work on document template

RainmeterStudio.Core/Model/IDocumentTemplate.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+using System.Linq;
+using RainmeterStudio.Core.Model;
+
+namespace RainmeterStudio.Core.Model
+{
+    /// <summary>
+    /// Represents a document template
+    /// </summary>
+    public interface IDocumentTemplate
+    {
+        /// <summary>
+        /// Gets the document template name
+        /// </summary>
+        string Name { get; }
+
+        /// <summary>
+        /// Gets the default extension of this template
+        /// </summary>
+        string DefaultExtension { get; }
+
+        /// <summary>
+        /// Gets or sets the properties of this template
+        /// </summary>
+        /// <remarks>Properties are used to display a form dialog after the "New item" dialog closes.</remarks>
+        IEnumerable<Property> Properties { get; }
+
+        /// <summary>
+        /// Creates a document using this template
+        /// </summary>
+        /// <returns>Created document.</returns>
+        IDocument CreateDocument();
+    }
+}

RainmeterStudio.Core/Model/IProjectTemplate.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace RainmeterStudio.Core.Model
+{
+    /// <summary>
+    /// Project template interface
+    /// </summary>
+    public interface IProjectTemplate
+    {
+        /// <summary>
+        /// Gets or sets the name of the template
+        /// </summary>
+        string Name { get; }
+
+        /// <summary>
+        /// Gets or sets the properties of this template
+        /// </summary>
+        /// <remarks>Properties are used to display a form dialog after the "New project" dialog closes.</remarks>
+        IEnumerable<Property> Properties { get; }
+
+        /// <summary>
+        /// Creates a project.
+        /// </summary>
+        /// <returns>Created project</returns>
+        Project CreateProject();
+    }
+}