get node install working in windows

pathman/pathman.bat

@@ -0,0 +1,19 @@
+pushd "%userprofile%" || goto :error
+  IF NOT EXIST .local (
+    mkdir .local || goto :error
+  )
+  IF NOT EXIST .local\bin (
+    mkdir .local\bin || goto :error
+  )
+
+  pushd .local\bin || goto :error
+    rem TODO %PROCESSOR_ARCH%
+    powershell $ProgressPreference = 'SilentlyContinue'; Invoke-WebRequest "https://rootprojects.org/pathman/dist/windows/amd64/pathman.exe" -OutFile pathman.exe || goto :error
+  popd || goto :error
+popd
+
+goto :EOF
+
+:error
+echo Failed with error #%errorlevel%.
+exit /b %errorlevel%