Declare Emacs on MS-Windows to be DPI-aware

* nt/emacs-x86.manifest (asmv3:windowsSettings): Add dpiAware.
* nt/emacs-x64.manifest (asmv3:windowsSettings): Add dpiAware.
This avoids Windows entering compatibility mode for Emacs,
which causes fonts to look less nice.

Copyright-paperwork-exempt: yes

nt/emacs-x64.manifest

 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
   <dependency>
     <dependentAssembly>
       <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls"
@@ -30,4 +30,9 @@
          <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
       </application> 
     </compatibility>
+  <asmv3:application>
+    <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
+      <dpiAware>true</dpiAware>
+    </asmv3:windowsSettings>
+  </asmv3:application>
 </assembly>

nt/emacs-x86.manifest

 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
   <dependency>
     <dependentAssembly>
       <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls"
@@ -30,4 +30,9 @@
         <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
       </application> 
     </compatibility>
+  <asmv3:application>
+    <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
+      <dpiAware>true</dpiAware>
+    </asmv3:windowsSettings>
+  </asmv3:application>
 </assembly>