Adding powershell start scripts for windows, fix nodetool ping output

.github/workflows/wintest.yml

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+name: Windows Test
+
+on:
+  pull_request:
+    branches:
+      - '4.0.0'
+      - 'master'
+  push:
+    branches:
+      - '4.0.0'
+      - 'master'
+
+jobs:
+  build:
+    name: Test on OTP ${{ matrix.otp_version }} and ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        # Cannot test OTP 21 due to https://bugs.erlang.org/browse/ERL-644 (see also https://github.com/elixir-lang/elixir/issues/7774)
+        otp_version: [19, 20, 22, 23]
+        os: [windows-latest]
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: gleam-lang/[email protected]
+      with:
+        otp-version: ${{ matrix.otp_version }}
+      id: install_erlang
+    - name: Run test
+      run: shelltests/wintest.ps1 "${{ steps.install_erlang.outputs.erlpath }}"

priv/templates/bin_windows_ps

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+#! /usr/bin/pwsh
+# This is a simple start script file that runs the release in an Erlang shell
+
+# Terminate on error
+$ErrorActionPreference = "Stop"
+
+# Set variables that describe the release
+$rel_name = '{{ rel_name }}'
+$rel_vsn = '{{ rel_vsn }}'
+$erts_vsn = '{{ erts_vsn }}'
+$erl_opts = '{{ erl_opts }}'
+
+# Ensure we have PSScriptRoot
+if (!(Test-Path variable:global:PSScriptRoot)) {
+    # Support for powershell 2.0
+    $PSScriptRoot = Split-Path -Parent -Path $MyInvocation.MyCommand.Definition
+}
+
+# Import psutil helper functions
+. $PSScriptRoot\psutil.ps1
+
+# Set the root release directory based on the location of this script
+$rootdir = Split-Path -Parent -Path $PSScriptRoot
+$rel_dir = "$rootdir\releases\$rel_vsn"
+
+$erts_root, $erts_dir = Find-ERTS -RelRoot $rootdir -Vsn $erts_vsn
+$sys_config = Find-FormatConfig -RelDir $rel_dir -File 'sys.config'
+$vm_args = Find-FormatConfig -RelDir $rel_dir -File 'vm.args'
+$boot_script = Find-BootScript -RelDir $rel_dir -RelName $rel_name
+$werl = "$erts_dir\bin\werl.exe"
+
+# Set the ERL_LIBS environment variable
+$env:ERL_LIBS = "$rootdir\lib"
+
+# Start the release in an `erl` shell
+$params = @($erl_opts, '-boot', $boot_script)
+if (![string]::IsNullOrEmpty($sys_config)) { $params += '-config', $sys_config }
+if (![string]::IsNullOrEmpty($vm_args))    { $params += '-args_file', $vm_args }
+$params += $args
+& $werl $params
+
+# Cleanup
+$env:ERL_LIBS = ''