feat: Add memory ballooning support (#1688)

assets/win10x64-iot.xml

@@ -255,6 +255,11 @@
           <Path>reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\CurrentVersion\NetworkList\Signatures\FirstNetwork" /v Category /t REG_DWORD /d 1 /f</Path>
           <Description>Set Network Location to Home</Description>
         </RunSynchronousCommand>
+        <RunSynchronousCommand wcm:action="add">
+          <Order>26</Order>
+          <Path>C:\Windows\Drivers\Balloon\blnsvr.exe -i</Path>
+          <Description>Install VirtIO Balloon service</Description>
+        </RunSynchronousCommand>
       </RunSynchronous>
     </component>
     <component name="Microsoft-Windows-TerminalServices-LocalSessionManager" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS">