* Make leveldb cache configurable
* Fix leveldb tests
* Add a preallocate option to all caches and disable in tests
Co-authored-by: stasatdaglabs <39559713+stasatdaglabs@users.noreply.github.com>
* Add selected chain store and optimize block locator with it
* Fix build error
* Fix comments
* Fix IsStaged
* Rename CalculateSelectedParentChainChanges to CalculateChainPath and SelectedParentChainChanges->SelectedChainPath
* Use binary.LittleEndian directly to allow compiler optimizations
* Remove boolean from HeadersSelectedChainStore interface
* Prevent endless loop in block locator