Blacklists of entities

[tommv]

Blacklist
It often happens that users want to exclude some of the entities from all the extracted graph. A typical case, is the exclusion of the keyword that were present in the original query and are therefore, by construction, connected to almost all the items in the graph.
It would save users a lot of time to be able to define this entities once and for all in black-list to be applied to all the extracted graph.

Whitelist
Researchers or experts may want to include in the maps some items that would be excluded by the selected thresholds. It would be therefore useful to have the possibility to 'impose' some items in the networks.