More refactoring, getting rid of meson in favor of just powershell scripts

scripts/helpers/devshell.ps1

@@ -0,0 +1,31 @@
+param (
+    [ValidateSet("x64", "x86", "arm", "arm64")]
+    [string]$arch = "x64"
+)
+
+$ErrorActionPreference = "Stop"
+
+# Use vswhere to find the latest Visual Studio installation
+$vswhere_out = & "C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe" -latest -property installationPath
+if ($null -eq $vswhere_out) {
+    Write-Host "ERROR: Visual Studio installation not found"
+    exit 1
+}
+
+# Find Launch-VsDevShell.ps1 in the Visual Studio installation
+$vs_path     = $vswhere_out
+$vs_devshell = Join-Path $vs_path "\Common7\Tools\Launch-VsDevShell.ps1"
+
+if ( -not (Test-Path $vs_devshell) ) {
+    Write-Host "ERROR: Launch-VsDevShell.ps1 not found in Visual Studio installation"
+    Write-Host Tested path: $vs_devshell
+    exit 1
+}
+
+# Set the target architecture based on the parameter
+$env:VSCMD_ARG_TGT_ARCH=$arch
+
+# Launch the Visual Studio Developer Shell
+Push-Location
+& $vs_devshell @args
+Pop-Location