Add new unit test sentences 

I have added test sentences of sub-category, Non-equal Gradable :Two entities one feature with more/less, 
from the discussion google doc https://docs.google.com/document/d/1tsBhFp-lvPfh4CvtiJYzjAeKuzNKYNxA7DXbqXRuvJA/edit
By work on the all the sentences in a subcategory at once, I would be able to check how the changes that I'm making for one sentences is affecting the others.
@linas , @AmeBel, @rodsol , @ruiting please review the new test sentences added. 




I think we should use _degree(little, comparative), as to be consistent with _degree(fast, comparative) for "He runs faster than John."  and _degree(slowly, comparative) for "He runs more slowly than John."

BTW, isn't there an underscore in front of the "degree", as "degree" isn't a word from the sentence?