Build MStore Win packages

For the MS Store packaging workflow only!
+ Fix workspaces read/write issue in the Store package environment

.appveyor.yml

@@ -9,7 +9,7 @@ image: Visual Studio 2017
 branches:
   only:
   - master
-  - 3.2.3
+  - 3.2.3_MS_Store
 
 # build cache to preserve files/folders between builds
 cache:

mscore/workspace.cpp

@@ -29,6 +29,8 @@
 #include "palettebox.h"
 #include "extension.h"
 
+extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
+
 namespace Ms {
 
 bool Workspace::workspacesRead = false;
@@ -564,7 +566,9 @@ void Workspace::read()
             return;
             }
       QFileInfo fi(_path);
+      ::qt_ntfs_permission_lookup++;
       _readOnly = !fi.isWritable();
+      ::qt_ntfs_permission_lookup--;
 
       MQZipReader f(_path);
       QList<QString> images;
@@ -1003,13 +1007,14 @@ QList<Workspace*>& Workspace::workspaces()
                         
                         if (!p) {
                               p = new Workspace;
+
                               p->setPath(s + "/" + entry);
                               p->setName(name);
-                              
                               if (translate)
                                     p->setTranslatableName(name);
-                              
+                              ::qt_ntfs_permission_lookup++;
                               p->setReadOnly(!fi.isWritable());
+                              ::qt_ntfs_permission_lookup--;
                               _workspaces.append(p);
                               }
                         }

msvc_build.bat

@@ -31,7 +31,7 @@ REM CLEAN:
 REM    "msvc_build.bat clean" remove all files in msvc.* folders and the folders itself
 
 REM BUILD_64 and BUILD_FOR_WINSTORE are used in CMakeLists.txt
-SET BUILD_FOR_WINSTORE=OFF
+SET BUILD_FOR_WINSTORE=ON
 SET BUILD_64=ON
 
 SET BUILD_FOLDER=msvc.build
@@ -123,7 +123,9 @@ IF /I "%1"=="clean" (
 @echo off
 
 IF NOT "%CRASH_LOG_SERVER_URL%" == "" (
-    SET CRASH_REPORT_URL_OPT=-DCRASH_REPORT_URL=%CRASH_LOG_SERVER_URL% -DBUILD_CRASH_REPORTER=ON
+    IF "%BUILD_FOR_WINSTORE%" == "OFF" (
+        SET CRASH_REPORT_URL_OPT=-DCRASH_REPORT_URL=%CRASH_LOG_SERVER_URL% -DBUILD_CRASH_REPORTER=ON
+        )
     )
 
 REM -DCMAKE_BUILD_NUMBER=%BUILD_NUMBER% -DCMAKE_BUILD_AUTOUPDATE=%BUILD_AUTOUPDATE% %CRASH_REPORT_URL_OPT% are used for CI only