add laby.bat to run it on windows systems

- build is still on linux only ( shell untested )
- generate laby.bat

specificdoit.sh

@@ -1,5 +1,19 @@
 #!/bin/bash
 
+function findmainjar()
+{    
+    for MJ in $(find . -name "*.jar")
+    do
+	echo "$MJ"
+	if [[ $MJ =~ (artloglaby-.*\.jar) ]]
+	then
+	    MAINJAR=${BASH_REMATCH[1]}
+	    echo "found $MJ jar $MAINJAR"	    
+	fi
+    done
+    
+}
+
 specific_run()
 {
     local action=$1
@@ -35,8 +49,23 @@ create_zip_package()
 	mkdir $dest/lab
 	mkdir $dest/libs
 	cp scripts/laby.sh $dest
+
+	MAINJAR=""
+	pushd dist/lib
+	findmainjar
+	popd
+
+	if [[ -n $MAINJAR ]]
+	then
+	    printf '%b\n' "java -jar $MAINJAR"
+	    printf '%b\r\n' "java -jar $MAINJAR" >$dest/laby.bat
+	else
+	    echo "[ERROR] can't find main jar"
+	fi
+
+
 	cp LISEZMOI $dest
-	cp libs/* $dest/libs/
+	cp libs/* $dest/libs/	
 	cp dist/lib/* $dest
 	zip -r $zip_package $dest