Add strong responses to 1x-1y-2nt

Update responses for 1 of opening suit, 1 of a suit, 2NT. Previous
responses only accounted for weak responder hands. Add game and slam
responses.

Signed-off-by: Jonathan Mendez <br85ur3pqb@snkmail.com>
Fix spelling error: preferrably -> preferably

Signed-off-by: Jonathan Mendez <br85ur3pqb@snkmail.com>
Merge pull request #1 from jonathanmendez/update_1_1_2nt

Add strong responses to 1x-1y-2nt