Add venv batch script

start.bat

@@ -0,0 +1,24 @@
+@echo off
+
+cd /d %~dp0
+
+if exist .venv\Lib\site-packages\six.py (
+  (
+    .venv\Scripts\activate.bat
+    python pyeamu.py
+  )
+) else (
+  (
+    python -m venv .venv
+    .venv\Scripts\activate.bat
+    pip install -U -r requirements.txt
+    python pyeamu.py
+  )
+)
+
+echo:
+echo Install python and check "Add python.exe to PATH"
+echo https://www.python.org/ftp/python/3.10.8/python-3.10.8-amd64.exe
+echo:
+
+pause