Add REST_NONLEGACYSHELLMODE policy.

dlls/shell32/shpolicy.c

diff --git a/dlls/shell32/shpolicy.c b/dlls/shell32/shpolicy.c
index 6a05d60..4ff03b0 100644
--- a/dlls/shell32/shpolicy.c
+++ b/dlls/shell32/shpolicy.c
@@ -755,6 +755,12 @@
   },
 /* 0x4000050 - 0x4000060 */
   {
+    REST_NONLEGACYSHELLMODE,
+    strExplorer,
+    "NoneLegacyShellMode",
+    SHELL_NO_POLICY
+  },
+  {
     REST_STARTRUNNOHOMEPATH,
     strExplorer,
     "StartRunNoHOMEPATH",