more standalone TerranBASIC executable build files

buildapp/build_app_mac_arm.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+cd "${0%/*}"
+SRCFILES="tbasmac_arm"
+DESTDIR="out/TerranBASIC_macOS.arm.app"
+RUNTIME="runtime-osx-arm"
+# Cleanup
+rm -rf $DESTDIR || true
+mkdir $DESTDIR
+mkdir $DESTDIR/Contents
+mkdir $DESTDIR/Contents/MacOS
+
+# Prepare an application
+cp icns.png $DESTDIR/.icns
+cp $SRCFILES/Info.plist $DESTDIR/Contents/
+cp $SRCFILES/TerranBASIC.sh $DESTDIR/Contents/MacOS/
+chmod +x $DESTDIR/Contents/MacOS/TerranBASIC.sh
+
+# Copy over a Java runtime
+cp -r "../out/$RUNTIME" $DESTDIR/Contents/MacOS/
+
+# Copy over all the assets and a jarfile
+cp -r "../out/TerranBASIC.jar" $DESTDIR/Contents/MacOS/
+
+echo "Build successful: $DESTDIR"