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/test/qz/installer/provision/resources/script1.ps1

@@ -0,0 +1,5 @@
+$shell="PowerShell"
+$date="$(Get-Date -format "yyyy-MM-dd HH:mm:ss")"
+$script="$($myInvocation.MyCommand.Name)"
+# FIXME: ~/Desktop may try to write to /root/Desktop on Linux
+echo "$date Successful provisioning test from '$shell': $script" >> ~/Desktop/provision.log