EPR-API v2.3.0

Changes from Version 2.2 to Version 2.3 (of 02. January 2026):

1. Bugfix in epr_band.c: [EPR-7] Interpolation of geolocation ADS
2. Bugfix in epr_core.c: Setting errno to 0 in method epr_str_to_number.
3. Switched to a new test file.
4. Fixed some memory leaks (gh-15).
5. Packed data structures to reduce memory usage.
6. Minor low-level performance improvements.
7. Support for ATSR-2 files stored in the ENVISAT format.
8. Added support for ERS products in ENVISAT format (gh-2).
9. Support for the CMake build system (gh-6 and gh-10).
10. Support for products generated by ASAR processor v6.02 (gh-8).
11. Pack structures to reduce memory usage (gh-16).
12. Performance optimization (gh-17).
13. Extend reader to read ATSR-2 files.
14. Fix support for ASAR APS products (gh-20).
15. Fix support for ASA_WVI_1P (gh-9 and gh-21).
16. Add support for MERIS IODD8 (gh-11 and gh-22).