placed Asset/File/Image help into its own files

lib/WebGUI/Help/Image.pm

@@ -0,0 +1,22 @@
+package WebGUI::Help::Image;
+
+our $HELP = {
+
+        'image add/edit' => {
+		title => 'image add/edit title',
+		body => 'image add/edit body',
+		related => [
+			{
+				tag => 'asset fields',
+				namespace => 'Asset'
+			},
+			{
+				tag => 'file add/edit',
+				namespace => 'File'
+			},
+		]
+	},
+
+};
+
+1;