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/ProvisionerInstallerTests.java

@@ -0,0 +1,20 @@
+package qz.installer.provision;
+
+import org.codehaus.jettison.json.JSONException;
+import qz.common.Constants;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+public class ProvisionerInstallerTests {
+
+    public static void main(String ... args) throws JSONException, IOException {
+        InputStream in = ProvisionerInstallerTests.class.getResourceAsStream("resources/" + Constants.PROVISION_FILE);
+
+        // Parse the JSON
+        ProvisionInstaller provisionInstaller = new ProvisionInstaller(ProvisionerInstallerTests.class, in);
+
+        // Invoke all parsed steps
+        provisionInstaller.invoke();
+    }
+}