Retrofit KB to use FBco

[dosumis]

• Find all FBexp nodes used for splits in KB
• Substitute FBco ID, iri etc on these nodes
• Create new nodes for VFBexp IDs with is_deprecated is_true + replaced_by link to FBco node
• Detach all FBtp atttache to FBco Node & DELETE (note DETACH DELETE) these FBtp nodes.

That's it!