changelog

  - Metadata server can store small data ([!271](https://storage.bsc.es/gitlab/hpc/gekkofs/-/merge_requests/271))

    - Using config.hpp use_inline_data = true; and inline_data_size = 4096;

    - Data is stored in base64, as we use string to send the small data content (not bulk transfer)

  - Thallium support ([!273](https://storage.bsc.es/gitlab/hpc/gekkofs/-/merge_requests/273))

    - Migrated from Margo to Thallium for RPC communication.

    - Updated CMakeLists.txt and dependencies.

  - Inline data support and performance optimizations.

    - Enable inline data for small files (`LIBGKFS_USE_INLINE_DATA`).

    - Create write optimization (`LIBGKFS_CREATE_WRITE_OPTIMIZATION`).

    - Read inline prefetch (`LIBGKFS_READ_INLINE_PREFETCH`).

    - Dirents compression (`LIBGKFS_USE_DIRENTS_COMPRESSION`).

  - Added new tests (and enabling failing ones) to increase coverage

### Changed 

  - Disabled at_parent/at_fork/at_child as it seems unneded now 

### Fixed

  - SYS_lstat does not exists on some architectures, change to newfstatat ([!269](https://storage.bsc.es/gitlab/hpc/gekkofs/-/merge_requests/269))