Add US House Windows convenience CMD launcher

Author: mearvk

cmd/us-house/windows/US-House-Convenience.cmd

@@ -0,0 +1,9 @@
+@echo off
+setlocal
+set "PS=%~dp0US-House-Convenience.ps1"
+if not exist "%PS%" (
+  echo ERROR: %PS% not found.
+  exit /b 1
+)
+powershell.exe -NoProfile -ExecutionPolicy Bypass -File "%PS%" %*
+exit /b %ERRORLEVEL%