LinksFactory with LinksOptions

There should be a simple links factory with simple and easy to configure LinksOptions.
For example we can make option `SplitDataFromIndexes` and this will make the factory to use `SplitMemoryLinks` instead of `UnitedMemoryLinks`.

Start by locating the existing LinksFactory, LinksOptions, SplitMemoryLinks, and UnitedMemoryLinks types named in the issue. The work is done when the factory exposes simple configuration and SplitDataFromIndexes selects the requested links implementation, with coverage for both option values.

Written by the indexing model from the issue text.