Update the Database class to include explicit methods for fetching
various entity types, managing relationships, and querying file paths.
Implement hashing logic in the File module to facilitate tracking by
unique identifiers. Add C++20 support in configuration files.
Replace Metadata.h with Containers.h, introducing a HashTable
implementation with SIMD acceleration and specialized track tracking.
Cleanup PlayerEngine logic by merging it into the playback flow and
refactoring several internal API signatures.