Add heroic launcher installer scripts

overlay/opt/scripts/install_heroic.sh

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+#!/usr/bin/env bash
+###
+# File: install_heroic.sh
+# Project: scripts
+# File Created: Thursday, 1st January 1970 12:00:00 pm
+# Author: Console and webGui login account (jsunnex@gmail.com)
+# -----
+# Last Modified: Sunday, 16th January 2022 6:14:06 am
+# Modified By: Console and webGui login account (jsunnex@gmail.com)
+###
+
+pkg=heroic
+script_path=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd );
+script_name=$( basename "${BASH_SOURCE[0]}" )
+
+
+install() {
+    if ! dpkg --get-selections | grep -q "^$pkg[[:space:]]*install$" >/dev/null; then
+        echo 'deb https://sourceforge.net/projects/madlinux/files/repo core main'|sudo tee /etc/apt/sources.list.d/madlinux.list
+        wget -qO- Https://sourceforge.net/projects/madlinux/files/repo/madlinux.key|gpg --dearmor|sudo tee /etc/apt/trusted.gpg.d/madlinux.gpg>/dev/null
+
+        apt-get update
+        apt-get install -y heroic
+    fi
+
+    # Remove installer shortcut
+    rm -f /usr/share/applications/install.heroic.desktop
+}
+
+
+#INSTALLER:
+source "${script_path}/installer.sh"
+
+
+
+
+
+

overlay/usr/share/applications/install.heroic.desktop

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+[Desktop Entry]
+Name=Installer - Heroic (Epic Games Launcher)
+Categories=Game;
+Exec=/opt/scripts/install_heroic.sh %U
+Icon=installsoftware
+Terminal=true
+Type=Application