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/js/package.json

@@ -0,0 +1,35 @@
+{
+    "name": "qz-tray",
+    "version": "2.2.6-SNAPSHOT",
+    "description": "Connects a web client to the QZ Tray software.  Enables printing and device communication from javascript. ",
+    "main": "qz-tray.js",
+    "browser": {
+        "path": false
+    },
+    "scripts": {
+        "test": "echo \"Error: no test specified\" && exit 1"
+    },
+    "repository": {
+        "type": "git",
+        "url": "git+https://github.com/qzind/tray.git"
+    },
+    "keywords": [
+        "Printing",
+        "USB",
+        "Serial",
+        "RS232",
+        "USB",
+        "Scales",
+        "Zebra",
+        "Epson",
+        "Star",
+        "Citizen",
+        "BOCA"
+    ],
+    "author": "QZ Industries, LLC",
+    "license": "LGPL-2.1",
+    "bugs": {
+        "url": "https://github.com/qzind/tray/issues"
+    },
+    "homepage": "https://github.com/qzind/tray#readme"
+}