Please allow overriding signtool.exe with custom signing executable

We need to be using a different tool for signing (we have one in our company that signs via azure). It would be great if there was an argument to squirrel.exe to be able to use it in addition to the signParams that are already there. Something like this (applied to the sample from the docs):

Squirrel pack`
 --framework net6,vcredist143-x86`  # Install .NET 6.0 (x64) and vcredist143 (x86) during setup, if not installed
 --packName "YourApp"`              # Application / package name
 --packVersion "1.0.0"`             # Version to build. Should be supplied by your CI
 --packAuthors "YourCompany"`       # Your name, or your company name
 --packDirectory ".\publish"`       # The directory the application was published to
 --setupIcon "mySetupIcon.ico"`     # Icon for Setup.exe
 --splashImage "install.gif"        # The splash artwork (or animation) to be shown during install
 --signingExe "C:/path/to/my/signtool.exe"
 --signParams "params to my signtool"

This should be calling C:/path/to/my/signtoo.exe params to my signtool (note that the “sign” argument should not be in here if overriding the signingExe).

For reference, ours needs to be called like this: AzureSignTool.exe -f “filetosign” -p “password”

[caesay]

This is a good idea, I will work on this for the next prerelease.

[caesay]

This has been released in 2.7.89-pre.