add class to eval context

i did the same in chomens bot and it works great because you can import any class from eval,..,,

src/main/java/land/chipmunk/chipmunkmod/commands/EvalCommand.java

@@ -36,6 +36,7 @@ public class EvalCommand {
 
             globals.set("client", CoerceJavaToLua.coerce(MinecraftClient.getInstance()));
             globals.set("context", CoerceJavaToLua.coerce(context));
+            globals.set("class", CoerceJavaToLua.coerce(Class.class));
 
             LuaValue chunk = globals.load(code);