Support Windows Subsystem for Linux

package/windows/install.bat

@@ -0,0 +1,21 @@
+@echo off
+set "CURR_PATH=%~dp0"
+set "STARTUP_PATH=%userprofile%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup"
+FOR /F %%i IN ('wsl pwd') DO @set DIR_IN_WSL=%%i
+
+wsl sudo %DIR_IN_WSL%/../../install -i
+IF NOT %ERRORLEVEL% == 0 (
+  echo Install smartdns failed.
+  pause
+  exit 1
+)
+
+copy %CURR_PATH%\wsl-run.vbs "%STARTUP_PATH%/"
+IF NOT %ERRORLEVEL% == 0 (
+  echo Install startupt script failed.
+  pause
+  exit 1
+)
+
+echo Install smartdns success
+pause