Data gaps and analysis

Now the bot analyses the data gaps whenever it gives out an answer for any question across the channels. It primarily checks two aspects

1. It checks how densely the data is available from knowledge base for the asked question.
2. It checks how relavent the question is for the knowledge base

Depending on the scores for above two features, it decides if there is any potentials data gap. If so, it drafts a note explaining the topic of the data gap and points to cover.