Method count

tests/misc/containers.cpp:222–224

Normalize count to use has()

    // Normalize count to use has()
    fl::size count(const Key& key) const {
        return Base::has(key) ? 1 : 0;
    }

    // Erase is now properly implemented in unsorted_map_fixed base class
    // This just calls the base implementation which actually removes the element