ncaStorageSetPatchOriginalSubStorage: allow Patch title version to be equal to the Base title version (e.g. sparse titles).
ncaStorageGetHashTargetExtents: actually set proper storage extents.
bktrGetTreeNodeEntryIndex: fix index lookup algorithm.
bktrStorageNodeFind: fix binary search.
bktrVisitorMoveNext / bktrVisitorMovePrevious: fix integer overflows.