Refactored SH_FIND_SLOT_INSERT_FOR_GROW to ignore deleted slots as they do not exist in the newly created table

Simplified SH_VALID_ENTRIES_MASK logic used inside SH_ITERATE and SH_GROW methods

Fixed a couple of ISO C90 warnings and compiled errors during the postgres build

Added missing `SH_ESTIMATE_SPACE` and `create_with_capacity` functions to the swisshash table, updated simplehash.h header

Fixed iterator implementation and added tests

Fixed a couple of typos

Added swisscash algorithm implementation with the simplehash signatures

Copied simplehash.h implementation to replace its implementation with swisscash.h

Added AVX2-based implementation for swisscash and memory alignment support

Fixed iterator implementation and added tests

Fixed a couple of typos

Added swisscash algorithm implementation with the simplehash signatures

Copied simplehash.h implementation to replace its implementation with swisscash.h

Added AVX2-based implementation for swisscash and memory alignment support

Automatic generation of tests for new hashtables

Fixed build after make/ninja clean

Refactored test generation to trigger on CMake file changes

Adjusted distribution range in the random test

Refactored test case generation logic