added platform abstraction layer

lib/src/main/java/net/tomatentum/marinara/wrapper/LibraryConverter.java

@@ -0,0 +1,9 @@
+package net.tomatentum.marinara.wrapper;
+
+public interface LibraryConverter {
+    public Object toAttachment(Object context, String option);
+    public Object toChannel(Object context, String option);
+    public Object toMentionable(Object context, String option);
+    public Object toRole(Object context, String option);
+    public Object toUser(Object context, String option);
+}

lib/src/main/java/net/tomatentum/marinara/wrapper/LibraryWrapper.java

@@ -0,0 +1,36 @@
+package net.tomatentum.marinara.wrapper;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+import net.tomatentum.marinara.command.option.OptionType;
+import net.tomatentum.marinara.interaction.InteractionType;
+
+public abstract class LibraryWrapper {
+
+    private List<Consumer<Object>> interactionSubscriber;
+
+    protected LibraryWrapper() {
+        interactionSubscriber = new ArrayList<>();
+    }
+
+    public abstract void registerGlobalCommand(); 
+    public abstract void registerServerCommand();
+
+    public void handleInteraction(Object context) {
+        interactionSubscriber.forEach((o) -> o.accept(context));
+    }
+
+    public void subscribeInteractions(Consumer<Object> consumer) {
+        interactionSubscriber.add(consumer);
+    }
+    public void unsubscribeInteractions(Consumer<Object> consumer) {
+        interactionSubscriber.remove(consumer);
+    }
+
+    public abstract InteractionType getInteractionType(Class<?> clazz);
+    public abstract OptionType getOptionType(Class<?> clazz);
+    public abstract LibraryConverter getConverter();
+
+}