chore: Add click-to-run scripts

scripts/1-setup-environment.bat

@@ -0,0 +1,29 @@
+@echo off
+
+echo Check, if OpenJDK/ Eclipse Temurin 11 or newer is installed.
+pause
+echo:
+
+cd modules
+call run java -version
+cd ..
+
+echo:
+set /P INSTALLED_JAVA=Can you see OpenJDK/ Eclipse Temurin 11 or newer? (y/n)
+
+if "%INSTALLED_JAVA%"=="y" (
+    echo The environment is set up.
+    pause
+    exit
+)
+
+cls
+echo Install Eclipse Temurin JRE 21.
+pause
+
+cd modules
+call install-java
+cd ..
+
+echo The environment is set up. Rerun this script to check your environment.
+pause