Add Windows Universal export to editor

- Use OPENSSL_ENABLED definition to the whole source to detect it
  anywhere.
- Add WinRT/UWP template files with manifest and default images.

drivers/SCsub

@@ -17,6 +17,7 @@ SConscript('gl_context/SCsub');
 SConscript('pnm/SCsub');
 
 if (env['openssl']!='no'):
+	env.Append(CPPFLAGS=['-DOPENSSL_ENABLED']);
 	env_drivers.Append(CPPFLAGS=['-DOPENSSL_ENABLED']);
 	if (env['openssl']=="builtin"):
 		env_drivers.Append(CPPPATH=['#drivers/builtin_openssl2'])

platform/winrt/export/export.h

@@ -0,0 +1,29 @@
+/*************************************************************************/
+/*  export.h                                                             */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+void register_winrt_exporter();

tools/dist/uwp_template/AppxManifest.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" IgnorableNamespaces="uap mp build" xmlns:build="http://schemas.microsoft.com/developer/appx/2015/build">
+  <Identity Name="$identity_name$" Publisher="$publisher$" Version="$version_string$" ProcessorArchitecture="$architecture$" />
+  <mp:PhoneIdentity PhoneProductId="$product_guid$" PhonePublisherId="$publisher_guid$" />
+  <Properties>
+    <DisplayName>$display_name$</DisplayName>
+    <PublisherDisplayName>$publisher_display_name$</PublisherDisplayName>
+    <Logo>Assets\StoreLogo.png</Logo>
+  </Properties>
+  <Dependencies>
+    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.10240.0" MaxVersionTested="10.0.14393.0" />
+    <PackageDependency Name="Microsoft.VCLibs.140.00" MinVersion="14.0.24123.0" Publisher="CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US" />
+  </Dependencies>
+  <Resources>
+    <Resource Language="EN-US" />
+  </Resources>
+  <Applications>
+    <Application Id="App" Executable="godot.winrt.exe" EntryPoint="GodotWinRT.App">
+      <uap:VisualElements DisplayName="$display_name$" Square150x150Logo="Assets\Square150x150Logo.png" Square44x44Logo="Assets\Square44x44Logo.png" Description="$app_description$" BackgroundColor="$bg_color$">
+        <uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png" Square310x310Logo="Assets\Square310x310Logo.png" Square71x71Logo="Assets\Square71x71Logo.png" ShortName="$short_name$">
+		  $name_on_tiles$
+        </uap:DefaultTile>
+        <uap:SplashScreen Image="Assets\SplashScreen.png" />
+		$rotation_preference$
+      </uap:VisualElements>
+    </Application>
+  </Applications>
+  $capabilities_place$
+  <build:Metadata>
+    <build:Item Name="GodotEngine" Version="$godot_version$" />
+  </build:Metadata>
+</Package>