Update configure.cmd

Resolved an error that can not run configure.py if the env %configure_dir% contains spaces.

Author: freckie

configure.cmd

@@ -16,5 +16,5 @@
 
 set configure_dir=%~dp0
 set configure_dir=%configure_dir:~0,-1%
-python %configure_dir%\configure.py %* || ( exit /b )
+python "%configure_dir%\configure.py" %* || ( exit /b )
 echo Configuration finished