feat: Allow custom layer filters for hybrid recurrent
This should help support architectures like Falcon H1 where there is
overlap between layers that need attention and recurrent caches.
https://github.com/ggml-org/llama.cpp/pull/13979#discussion_r2140748922
Branch: HybridRecurrentCache
Signed-off-by: Gabe Goodhart <ghart@us.ibm.com>