Added post-screenshot GUI

src/main/java/com/replaymod/extras/Setting.java

@@ -0,0 +1,8 @@
+package com.replaymod.extras;
+
+import com.replaymod.core.SettingsRegistry;
+
+public final class Setting<T> {
+    public static final SettingsRegistry.SettingKey<Boolean> SKIP_POST_SCREENSHOT_GUI =
+            new SettingsRegistry.SettingKeys<>("advanced", "skipPostScreenshotGui", null, false);
+}