epm play: added moonlight (eterbug #17912)

play.d/moonlight.sh

+#!/bin/sh
+
+PKGNAME=Moonlight
+SUPPORTEDARCHES="x86_64"
+VERSION="$2"
+DESCRIPTION="GameStream client for PCs (Windows, Mac, and Linux)"
+URL="https://moonlight-stream.org/"
+
+. $(dirname $0)/common.sh
+
+if [ "$VERSION" = "*" ] ; then
+    PKGURL=$(get_github_version "https://github.com/moonlight-stream/moonlight-qt/" "$PKGNAME-.$VERSION-x86_64.AppImage")
+else
+    PKGURL="https://github.com/moonlight-stream/moonlight-qt/releases/download/v$VERSION/$PKGNAME-$VERSION-x86_64.AppImage"
+fi
+
+install_pkgurl