created 4 knights .

Signed-off-by: barryeee <eichelbergerb@nicc.edu>
created separate source files for each NPC.

Signed-off-by: barryeee <eichelbergerb@nicc.edu>
Added proper names for the green, red, and white knights.

Signed-off-by: barryeee <eichelbergerb@nicc.edu>