feat(reflink): hook up relink / clone on the copy dialog

Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>

launcher/InstanceCopyPrefs.cpp

@@ -113,6 +113,11 @@ bool InstanceCopyPrefs::isDontLinkSavesEnabled() const
     return dontLinkSaves;
 }
 
+bool InstanceCopyPrefs::isUseCloneEnabled() const
+{
+    return useClone;
+}
+
 // ======= Setters =======
 void InstanceCopyPrefs::enableCopySaves(bool b)
 {
@@ -173,3 +178,8 @@ void InstanceCopyPrefs::enableDontLinkSaves(bool b)
 {
     dontLinkSaves = b;
 }
+
+void InstanceCopyPrefs::enableUseClone(bool b)
+{
+    useClone = b;
+}