[windows] Script fix for <app> foreground

[artman41]

Previously on an <app> foreground, the task information would show but no input and no shell would show either meaning that the redirected output was invisble.

By changing the script to resemble the following, the node is started and can be interacted with

## This command starts the release in the foreground, i.e.
## standard out is routed to the current terminal session.

require-cookie

# Start the VM, executing pre and post start hooks
run-hooks -Phase pre_start

$boot = (join-path $Env:REL_DIR $Env:REL_NAME)

# Build argument vector for erl
$erl_opts = @()
if ($Env:ERL_OPTS -ne $null) {
    $erl_opts = string-to-argv -String $Env:ERL_OPTS
}
$extra_opts = @()
if ($Env:EXTRA_OPTS -ne $null) {
    $extra_opts = string-to-argv -String $Env:EXTRA_OPTS
}

#$argv = @("-noshell", "-noinput", "+Bd")
$argv += @("-boot", $boot)
$argv += @("-args_file", "$Env:VMARGS_PATH")
$argv += @("-mode", "embedded")
$argv += $erl_opts
$argv += "-extra"
$argv += $extra_opts
$argv += $args

run-hooks -Phase post_start

iex "erl $argv"

[bitwalker]

Could you submit this as a PR? I'd like to have an exact diff so I can see the changes better without accidentally missing something or introducing my own changes into the mix.