Add build.sh install.sh run.sh

scripts/install.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -e
+VERSION="2.13.1"
+URL="https://search.maven.org/remotecontent?filepath=com/google/code/gson/gson/2.13.1/gson-2.13.1.jar"
+
+LIB_DIR="./lib"
+JAR_PATH="${LIB_DIR}/gson-${VERSIO}N.jar"
+
+
+mkdir -p "$LIB_DIR"
+
+
+if [ -f "$JAR_PATH" ]; then
+	echo "gson-${VERSION}.jar already exists"
+else
+	echo "gson-${VERSION}.jar herunter"
+	curl -L "$URL" -o "$JAR_PATH"
+	echo "Download succesfull"
+fi
+
+echo "Installation done. You can now run build.sh"