FS-11066: [Build-System] Make WIX project be able to produce snapshots with proper msi naming on windows.

w32/Setup/GitInfo/wslpath.cmd

@@ -0,0 +1,26 @@
+@echo off
+setlocal EnableExtensions EnableDelayedExpansion
+REM Usage: wslpath.cmd -w <linux path>
+REM Converts a path from the Linux /mnt/c/... format into Windows format.
+
+REM Usage: wslpath.cmd -u <windows path>
+REM Converts a path from Windows to Linux format.
+
+REM Both usages require `wslrun.cmd` in the same directory as this file.
+
+if exist %0\..\wslrun.cmd set WSLRUN="%0\..\wslrun.cmd"
+if exist %CD%\%0\..\wslrun.cmd set WSLRUN="%CD%\%0\..\wslrun.cmd"
+
+if "%1" == "-w" goto :towindows
+if "%1" == "-u" shift /1
+
+REM Convert path to Linux
+if exist "%1\*" (pushd %1) else (pushd %~dp1)
+if ERRORLEVEL 1 goto :eof
+%WSLRUN% pwd
+popd
+goto :eof
+
+:towindows
+REM Convert path to Windows
+%WSLRUN% cd "'%2'" ^&^& cmd.exe /c cd