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/src/qz/build/provision/params/EnumParser.java

@@ -0,0 +1,64 @@
+package qz.build.provision.params;
+
+import java.util.EnumSet;
+import java.util.HashSet;
+
+public interface EnumParser {
+    /**
+     * Basic enum parser
+     */
+
+    static <T extends Enum<T>> T parse(Class<T> clazz, String s) {
+        return parse(clazz, s, null);
+    }
+
+    static <T extends Enum<T>> T parse(Class<T> clazz, String s, T fallbackValue) {
+        if(s != null) {
+            for(T en : EnumSet.allOf(clazz)) {
+                if (en.name().equalsIgnoreCase(s)) {
+                    return en;
+                }
+            }
+        }
+        return fallbackValue;
+    }
+
+    static <T extends Enum<T>> T parseStrict(Class<T> clazz, String s, T ... blocklist) throws UnsupportedOperationException {
+        if(s != null) {
+            HashSet<T> matched = parseSet(clazz, null, s);
+            if (matched.size() == 1) {
+                T returnVal = matched.iterator().next();
+                boolean blocked = false;
+                for(T block : blocklist) {
+                    if(returnVal == block) {
+                        blocked = true;
+                        break;
+                    }
+                }
+                if(!blocked) {
+                    return returnVal;
+                }
+            }
+        }
+        throw new UnsupportedOperationException(String.format("%s value '%s' failed to match one and only one item", clazz.getSimpleName(), s));
+    }
+
+    static <T extends Enum<T>> HashSet<T> parseSet(Class<T> clazz, T all, String s) {
+        HashSet<T> matched = new HashSet<>();
+        if(s != null) {
+            // Handle ALL="*"
+            if (all != null && s.equals("*")) {
+                matched.add(all);
+            }
+
+            String[] parts = s.split("\\|");
+            for(String part : parts) {
+                T parsed = parse(clazz, part);
+                if (parsed != null) {
+                    matched.add(parsed);
+                }
+            }
+        }
+        return matched;
+    }
+}