add more options to copy instance dialog

- Copy game options, copy resource packs, copy shaders,
copy servers, and copy mods
- Also made a new InstanceCopyPrefs struct to store those
options rather than passing 7 different booleans into
InstanceCopyTask's constructor

Signed-off-by: Marcelo Hernandez <marcelohdez.inq@gmail.com>

launcher/InstanceCopyPrefs.h

@@ -0,0 +1,18 @@
+//
+// Created by marcelohdez on 10/22/22.
+//
+
+#ifndef LAUNCHER_INSTANCECOPYPREFS_H
+#define LAUNCHER_INSTANCECOPYPREFS_H
+
+struct InstanceCopyPrefs {
+    bool copySaves;
+    bool keepPlaytime;
+    bool copyGameOptions;
+    bool copyResourcePacks;
+    bool copyShaderPacks;
+    bool copyServers;
+    bool copyMods;
+};
+
+#endif  // LAUNCHER_INSTANCECOPYPREFS_H