epm play: add fbreader (eterbug #17797)

play.d/fbreader.sh

+#!/bin/sh
+
+PKGNAME=FBReader_Book_Reader
+SUPPORTEDARCHES="x86_64 aarch64"
+VERSION="$2"
+DESCRIPTION="An ePub reader supporting Readium LCP DRM. Also opens fb2 and other formats. Free, fast, configurable"
+URL="https://fbreader.org/en/linux"
+
+. $(dirname $0)/common.sh
+
+warn_version_is_not_supported
+
+arch=$(epm print info -a)
+
+if [ "$VERSION" = "*" ]; then
+    VERSION=$(eget -O- https://fbreader.org/en/linux/packages | grep -o -m 1 "FBReader [0-9].[0-9].[0-9]" | awk '{print $2}')
+fi 
+
+PKGURL="https://fbreader.org/static/packages/linux/FBReader_Book_Reader-$arch-$VERSION.AppImage"
+
+install_pkgurl