- Added `lzss_decompress_simple` function for LZSS decompression in `lzss.rs`.
- Introduced `XorState` struct and `xor_stream` function for XOR decryption in `xor.rs`.
- Updated `mod.rs` to include new LZSS and XOR modules.
- Refactored `parse_library` function in `parse.rs` to utilize the new XOR decryption functionality.
- Cleaned up and organized code in `lib.rs` by removing redundant functions and structures.
- Added tests for new functionality in `tests.rs`.
- Moved the test suite from `lib.rs` to a new `tests.rs` file for better organization.
- Added a `SyntheticRsliEntry` struct to facilitate synthetic test cases.
- Introduced `RsliBuildOptions` struct to manage options for building RsLi byte arrays.
- Implemented various utility functions for file handling, data compression, and bit manipulation.
- Enhanced the `rsli_read_unpack_and_repack_all_files` test to validate all RsLi archives.
- Added new tests for synthetic entries covering all packing methods, overlay handling, and validation error cases.
- Created Cargo.toml for the rsli crate with flate2 dependency.
- Implemented ResourceData enum for handling borrowed and owned byte slices.
- Added OutputBuffer trait and its Vec<u8> implementation for writing data.
- Defined a comprehensive Error enum for error handling in the library.
- Developed the Library struct to manage resource entries and provide methods for loading and unpacking resources.
- Implemented various packing methods and decompression algorithms, including LZSS and Deflate.
- Added tests for validating the functionality of the rsli library against sample data.
