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. 




Similarly: "My sister runs faster than I do" 

The "... than me" construction is OK when "me" is the object, not the subject:  "My sister likes her cat more than she likes me"  or "My sister likes her cat more than me" are both valid.

These last two sentences should probably be added to the unit test.