Add custom QZ Tray fork with pairing key authentication

- Custom fork of QZ Tray 2.2.x with certificate validation bypassed
- Implemented pairing key (HMAC) authentication as replacement
- Modified files: PrintSocketClient.java (certificate check disabled)
- New files: PairingAuth.java, PairingConfigDialog.java
- Excluded build artifacts (out/, lib/javafx*) from repository
- Library JARs included for dependency management

tray/ant/apple/apple-postinstall.sh.in

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Halt on first error
+set -e
+
+# Get working directory
+DIR=$(cd "$(dirname "$0")" && pwd)
+pushd "$DIR/payload/${project.name}.app/Contents/MacOS/"
+
+./"${project.name}" install >> "${install.log}" 2>&1
+popd
+
+# Use install target from pkgbuild, an undocumented feature; fallback on sane location
+if [ -n "$2" ]; then
+    pushd "$2/Contents/MacOS/"
+else
+    pushd "/Applications/${project.name}.app/Contents/MacOS/"
+fi
+
+./"${project.name}" certgen >> "${install.log}" 2>&1
+
+# Start qz by calling open on the .app as an ordinary user
+su "$USER" -c "open ../../" || true