add these things

modernized-client/src/main/java/com/openosrs/client/plugins/PluginMetadata.java

@@ -0,0 +1,33 @@
+package com.openosrs.client.plugins;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Plugin metadata.
+ */
+public class PluginMetadata {
+    private final String name;
+    private final String description;
+    private final String author;
+    private final String version;
+    private final List<String> dependencies;
+    private final List<String> capabilities;
+    
+    public PluginMetadata(String name, String description, String author, String version, 
+                         List<String> dependencies, List<String> capabilities) {
+        this.name = name;
+        this.description = description;
+        this.author = author;
+        this.version = version;
+        this.dependencies = new ArrayList<>(dependencies);
+        this.capabilities = new ArrayList<>(capabilities);
+    }
+    
+    public String getName() { return name; }
+    public String getDescription() { return description; }
+    public String getAuthor() { return author; }
+    public String getVersion() { return version; }
+    public List<String> getDependencies() { return new ArrayList<>(dependencies); }
+    public List<String> getCapabilities() { return new ArrayList<>(capabilities); }
+}