External apps (#1469)

* implemented external app build

* added some ui stuff for testing

* added pacman game

* wired key to pacman game

* fixed pacman drawing issue

* changed afsk rx app to be external

* fixed ui::NavigationView initialization for external apps

* refactoring

* refactoring

* moved m4 image to external app

* added script for external app deployment

* refactoring

* implemented dynamic app listing

* added color to app icon

* improved app loading

* added external apps to sd card content

* refactoring

* review findings

* typo

* review findings

* improved memory management of bitmaps

firmware/tools/copy_external_apps.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2023 Bernd Herzog
+#
+# This file is part of PortaPack.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+# This script will copy compiled external apps to the Portapack.
+
+try=1
+while [ $try -le 180 ]
+do
+    if ls /dev/disk/by-id/*Portapack*part1 1> /dev/null 2>&1; then
+        disk=$(ls /dev/disk/by-id/*Portapack*part1)
+        part=$(readlink -f $disk)
+        mountpoint=$(findmnt -f -o TARGET --noheadings $part)
+        if [[ ! -z "$mountpoint" ]]; then
+
+            echo "Copying external applications to" $mountpoint
+            mkdir -p $mountpoint/APPS
+            cp application/*.ppma $mountpoint/APPS
+
+            echo "Unmounting" $mountpoint
+            umount $mountpoint
+
+            exit
+        fi
+    fi
+
+    if [ "$(( $try %5 ))" -eq "1" ]; then
+        echo "Please start SD over USB app ..."
+    fi
+
+    sleep 1
+
+    try=$(( $try + 1 ))
+done