Still trying to get Ef6 CodeFirst up and going.

* Having problems with the seeding for the MLT/Lines. Something to do with
  the one-to-many relationship. I've gotten the MLT in, but not the lines,
  and they refuse to go...but I've been working on this for about 6 hours
  today, and it's saturday...so time to take a break!

Signed-off-by: William Raiford <bill.mybiz@gmail.com>