Revert "Remove RNN  directory and RNN layer file"
Revert "Remove RNN  directory and RNN layer file"

This reverts commit b0adf47ae9b28a44985b7722f7ae15d861e08b35.

olifre/root,olifre/root,karies/root,olifre/root,olifre/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,karies/root,root-mirror/root,olifre/root,olifre/root,olifre/root,karies/root,karies/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,karies/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,karies/root,root-mirror/root