windows: fix en-dash characters in installer Exec command

The powershell.exe invocation in the Installer.Windows.csproj Exec
task uses Unicode en dash characters (U+2013) instead of ASCII hyphens
for the -NonInteractive and -ExecutionPolicy parameters. Windows
PowerShell 5.1 does not recognise en dashes as parameter prefixes, so
these flags are not applied correctly, which can cause the layout step
to fail or run with an unexpected execution policy.

Replace the en dash characters with ASCII hyphens.

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>

Author: mjcheetham

src/windows/Installer.Windows/Installer.Windows.csproj

@@ -44,7 +44,7 @@
     <Message Text="Lay Out" Importance="High" />
     <Exec Condition="'$(NoLayout)'!='true'"
           ConsoleToMSBuild="true"
-          Command="powershell.exe –NonInteractive –ExecutionPolicy Unrestricted -Command &quot;&amp; {&amp;'$(MSBuildProjectDirectory)\layout.ps1' -Configuration '$(Configuration)' -Output '$(PayloadPath)' -RuntimeIdentifier '$(RuntimeIdentifier)'; if ($?) { exit 0 } else { exit 1 }}&quot;"
+          Command="powershell.exe -NonInteractive -ExecutionPolicy Unrestricted -Command &quot;&amp; {&amp;'$(MSBuildProjectDirectory)\layout.ps1' -Configuration '$(Configuration)' -Output '$(PayloadPath)' -RuntimeIdentifier '$(RuntimeIdentifier)'; if ($?) { exit 0 } else { exit 1 }}&quot;"
           IgnoreExitCode="true">
       <!-- If we want to display the console output if the exit code is not 0, we need to capture it and then output it using the <Error /> below -->
       <Output TaskParameter="ExitCode" PropertyName="ExitCodeOfExec" />