BUG: avoid ITK_AUTOLOAD_PATH growth at each otbcli/otbgui.bat call

CMake/otbcli.bat.in

@@ -14,6 +14,7 @@ if exist %CURRENT_SCRIPT_DIR%otbApplicationLauncherCommandLine.exe (
   set OTB_CLI_LAUNCHER=otbApplicationLauncherCommandLine.exe
 )
 
+setlocal
 :: works for install tree
 if exist %CURRENT_SCRIPT_DIR%../@OTB_INSTALL_APP_DIR@ (
   set ITK_AUTOLOAD_PATH=%CURRENT_SCRIPT_DIR%../@OTB_INSTALL_APP_DIR@;%ITK_AUTOLOAD_PATH%
@@ -21,3 +22,4 @@ if exist %CURRENT_SCRIPT_DIR%../@OTB_INSTALL_APP_DIR@ (
 
 :: start the application
 %OTB_CLI_LAUNCHER% %*
+endlocal

CMake/otbgui.bat.in

@@ -14,6 +14,7 @@ if exist %CURRENT_SCRIPT_DIR%otbApplicationLauncherQt.exe (
   set OTB_GUI_LAUNCHER=otbApplicationLauncherQt.exe
 )
 
+setlocal
 :: works for install tree
 if exist %CURRENT_SCRIPT_DIR%../@OTB_INSTALL_APP_DIR@ (
   set ITK_AUTOLOAD_PATH=%CURRENT_SCRIPT_DIR%../@OTB_INSTALL_APP_DIR@;%ITK_AUTOLOAD_PATH%
@@ -23,3 +24,4 @@ set LC_NUMERIC=C
 
 :: start the application
 %OTB_GUI_LAUNCHER% %*
+endlocal