Create Participatorio-desktop theme's structure

Create Participatorio-desktop theme's structure based on Mirage xmlui theme.

dspace/modules/xmlui/src/main/webapp/themes/Participatorio-desktop/Participatorio-desktop.xsl

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    The contents of this file are subject to the license and copyright
+    detailed in the LICENSE and NOTICE files at the root of the source
+    tree and available online at
+
+    http://www.dspace.org/license/
+
+-->
+<!--
+    TODO: Describe this XSL file
+    Author: Alexey Maslov
+
+-->
+
+<xsl:stylesheet xmlns:i18n="http://apache.org/cocoon/i18n/2.1"
+	xmlns:dri="http://di.tamu.edu/DRI/1.0/"
+	xmlns:mets="http://www.loc.gov/METS/"
+	xmlns:xlink="http://www.w3.org/TR/xlink/"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
+	xmlns:dim="http://www.dspace.org/xmlns/dspace/dim"
+	xmlns:xhtml="http://www.w3.org/1999/xhtml"
+	xmlns:mods="http://www.loc.gov/mods/v3"
+	xmlns:dc="http://purl.org/dc/elements/1.1/"
+	xmlns="http://www.w3.org/1999/xhtml"
+	exclude-result-prefixes="i18n dri mets xlink xsl dim xhtml mods dc">
+
+    <xsl:import href="../dri2xhtml-alt/dri2xhtml.xsl"/>
+    <xsl:import href="lib/xsl/core/global-variables.xsl"/>
+    <xsl:import href="lib/xsl/core/page-structure.xsl"/>
+    <xsl:import href="lib/xsl/core/navigation.xsl"/>
+    <xsl:import href="lib/xsl/core/elements.xsl"/>
+    <xsl:import href="lib/xsl/core/forms.xsl"/>
+    <xsl:import href="lib/xsl/core/attribute-handlers.xsl"/>
+    <xsl:import href="lib/xsl/core/utils.xsl"/>
+    <xsl:import href="lib/xsl/aspect/general/choice-authority-control.xsl"/>
+    <xsl:import href="lib/xsl/aspect/administrative/administrative.xsl"/>
+    <xsl:import href="lib/xsl/aspect/artifactbrowser/item-list.xsl"/>
+    <xsl:import href="lib/xsl/aspect/artifactbrowser/item-view.xsl"/>
+    <xsl:import href="lib/xsl/aspect/artifactbrowser/community-list.xsl"/>
+    <xsl:import href="lib/xsl/aspect/artifactbrowser/collection-list.xsl"/>
+    <xsl:output indent="yes"/>
+    
+
+</xsl:stylesheet>