Revert "Core: Remove MemoryWatcher"

This reverts commit 0c02e77eee.

Source/Core/Common/FileUtil.h

@@ -48,6 +48,7 @@ enum
   D_THEMES_IDX,
   D_STYLES_IDX,
   D_PIPES_IDX,
+  D_MEMORYWATCHER_IDX,
   D_WFSROOT_IDX,
   D_BACKUP_IDX,
   D_RESOURCEPACK_IDX,
@@ -64,6 +65,8 @@ enum
   F_ARAMDUMP_IDX,
   F_FAKEVMEMDUMP_IDX,
   F_GCSRAM_IDX,
+  F_MEMORYWATCHERLOCATIONS_IDX,
+  F_MEMORYWATCHERSOCKET_IDX,
   F_WIISDCARD_IDX,
   NUM_PATH_INDICES
 };