This reverts commit e2ae1a5a.

- Updated README.md with BOSC decompressor usage instructions
- Added `bess()` method to `BosState` for accessing BESS state
- Enhanced `bosc-decompress` binary with progress logging

- A new binary `bosc-decompress` for decompressing BOSC save state files
- Enhanced documentation for save state formats in the `SaveStateFormat` enum
- A new method `bos()` in `BoscState` to access the underlying BOS state
- Updated Cargo.toml to include the new binary configuration