adding packages

deprecated/responsive_scaffold/example/windows/scripts/bundle_assets_and_deps.bat

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+:: Copyright 2018 Google LLC
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::      http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+@echo off
+
+set FLUTTER_CACHE_DIR=%~1
+set BUNDLE_DIR=%~2
+set EXE_NAME=%~3
+
+set DATA_DIR=%BUNDLE_DIR%data
+
+if not exist "%DATA_DIR%" call mkdir "%DATA_DIR%"
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+:: Write the executable name to the location expected by the Flutter tool.
+echo %EXE_NAME%>"%FLUTTER_CACHE_DIR%exe_filename"
+
+:: Copy the Flutter assets to the data directory.
+set FLUTTER_APP_DIR=%~dp0..\..
+set ASSET_DIR_NAME=flutter_assets
+set TARGET_ASSET_DIR=%DATA_DIR%\%ASSET_DIR_NAME%
+if exist "%TARGET_ASSET_DIR%" call rmdir /s /q "%TARGET_ASSET_DIR%"
+if %errorlevel% neq 0 exit /b %errorlevel%
+call xcopy /s /e /i /q "%FLUTTER_APP_DIR%\build\%ASSET_DIR_NAME%" "%TARGET_ASSET_DIR%"
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+:: Copy the icudtl.dat file from the Flutter tree to the data directory.
+call xcopy /y /d /q "%FLUTTER_CACHE_DIR%icudtl.dat" "%DATA_DIR%"
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+:: Copy the Flutter DLL to the target location.
+call xcopy /y /d /q "%FLUTTER_CACHE_DIR%flutter_windows.dll" "%BUNDLE_DIR%"
+if %errorlevel% neq 0 exit /b %errorlevel%

deprecated/responsive_scaffold/example/windows/scripts/prepare_dependencies.bat

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+:: Copyright 2018 Google LLC
+::
+:: Licensed under the Apache License, Version 2.0 (the "License");
+:: you may not use this file except in compliance with the License.
+:: You may obtain a copy of the License at
+::
+::      http://www.apache.org/licenses/LICENSE-2.0
+::
+:: Unless required by applicable law or agreed to in writing, software
+:: distributed under the License is distributed on an "AS IS" BASIS,
+:: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+:: See the License for the specific language governing permissions and
+:: limitations under the License.
+@echo off
+
+set BUILD_MODE=%~1
+%FLUTTER_ROOT%\packages\flutter_tools\bin\tool_backend windows-x64 %BUILD_MODE%