Add check for logic adapter agreement

[gunthercox]

Closes #169

[rmdort]

@gunthercox Just wanted to know more about this? Could you give an example when this will occur?

[gunthercox]

Sure, consider a scenario where multiple logic adapters are being used. In a case where the outputs generated by the logic adapters are as follows:

Confidence	Statement
0.2	'Good morning.'
0.5	'Good morning.'
0.7	'Good night.'

In this case, two of the logic adapters have generated the same result. The idea behind these changes is to treat the fact that the two adapters have agreed on a response as a significant indicator that this particular response has a greater probability of being a more accurate response to the input.