* PackBitmapIndex: Set distance threshold
* PackBitmapIndex: Not buffer inflated bitmap in BasePackBitmapIndex
* PackBitmapIndex: Remove convertedBitmaps in the Remapper
* PackBitmapIndex: Reduce memory usage in GC
* PackBitmapIndex: Add AddToBitmapWithCacheFilter class
* PackBitmapIndex: Add util methods and builder to BitmapCommit
* PackBitmapIndex: Move BitmapCommit to a top-level class
* Refactor: Make retriveCompressed an method of the Bitmap class