Implement FastLoginPremiumToggleEvent

core/src/main/java/com/github/games647/fastlogin/core/shared/event/FastLoginPremiumToggleEvent.java

@@ -0,0 +1,14 @@
+package com.github.games647.fastlogin.core.shared.event;
+
+import com.github.games647.fastlogin.core.StoredProfile;
+
+public interface FastLoginPremiumToggleEvent {
+
+    StoredProfile getProfile();
+    PremiumToggleReason getReason();
+
+    enum PremiumToggleReason {
+        COMMAND_SELF,
+        COMMAND_OTHER
+    }
+}