add Javacord PermissionCheck

wrapper/javacord/src/main/java/net/tomatentum/marinara/wrapper/javacord/checks/PermissionCheck.java

@@ -0,0 +1,35 @@
+package net.tomatentum.marinara.wrapper.javacord.checks;
+
+import java.util.Optional;
+
+import org.javacord.api.entity.permission.PermissionType;
+import org.javacord.api.entity.server.Server;
+import org.javacord.api.interaction.InteractionBase;
+
+import net.tomatentum.marinara.checks.InteractionCheck;
+
+public class PermissionCheck implements InteractionCheck<PermissionCheck.HasPermission> {
+
+    public static @interface HasPermission {
+        public PermissionType[] value();
+    }
+
+    @Override
+    public boolean preExec(Object context, HasPermission annotation) {
+        throw new UnsupportedOperationException("Unimplemented method 'preExec'");
+    }
+
+    public boolean preExec(InteractionBase context, HasPermission annotation) {
+        Optional<Server> server = context.getServer();
+        if (!server.isPresent())
+            return false;
+
+       return server.get().hasPermissions(context.getUser(), annotation.value());
+    }
+
+    @Override
+    public void postExec(Object context, HasPermission annotation) {
+        
+    }
+    
+}