add 64bit Cura app

apps/Cura/install-64

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+DIRECTORY="$(dirname "$(dirname "$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )")")"
+
+function error {
+  echo -e "\\e[91m$1\\e[39m"
+  exit 1
+}
+
+wget -O ~/Cura.AppImage https://github.com/smartavionics/Cura/releases/download/20201023/Cura-mb-master-aarch64-20201023.AppImage || error "Failed to download!"
+
+chmod +x ~/Cura.AppImage
+
+echo "[Desktop Entry]
+Name=Ultimaker Cura
+GenericName=3D Printing Software
+Comment=Cura converts 3D models into paths for a 3D printer. It prepares your print for maximum accuracy, minimum printing time and good reliability with many extra features that make your print come out great.
+Exec=bash -c 'sudo modprobe fuse; ~/Cura.AppImage'
+Icon=$(dirname $0)/icon-64.png
+Terminal=false
+Type=Application
+MimeType=application/sla;application/vnd.ms-3mfdocument;application/prs.wavefront-obj;image/bmp;image/gif;image/jpeg;image/png;model/x3d+xml;
+Categories=Graphics;Education;Development;Science;
+Keywords=3D;Printing;
+StartupNotify=true" > ~/.local/share/applications/cura.desktop || error "Failed to create menu button!"
+