epm play: add gdlauncher (eterbug #18127)

pack.d/gdlauncher.sh

+#!/bin/sh
+
+TAR="$1"
+RETURNTARNAME="$2"
+
+. $(dirname $0)/common.sh
+
+# GDLauncher__2.0.24__linux__x64.AppImage 
+VERSION=$(basename $TAR .AppImage | sed -e 's|GDLauncher__||' | sed -e 's|__linux__x64||')
+PKGNAME="$PRODUCT-$VERSION.AppImage"
+
+mv -v $TAR $PKGNAME
+
+return_tar $PKGNAME

play.d/gdlauncher.sh

+#!/bin/sh
+
+PKGNAME=gdlauncher
+SUPPORTEDARCHES="x86_64"
+VERSION="$2"
+DESCRIPTION="All-In-One Minecraft Modded Launcher"
+URL="https://gdlauncher.com/"
+
+. $(dirname $0)/common.sh
+
+warn_version_is_not_supported
+
+PKGURL="https://gdlauncher.com/download/linux"
+
+install_pack_pkgurl