Add customization to scheme fits in Franchise mode

Currently, we are limited by what we can do with scheme fits in Franchise by the list of schemes provided to us. However, sometimes this is not adequate to fit the type of scheme we want to run. For example, if I want to run a West Coast Spread, the scheme fit pushes me toward using power runs. If I want to primarily use zone runs, I have to go against the scheme fit. I'd like to be able to customize what fits I want for my scheme.

Even better would be to set multiple archetypes for certain positions. For example, I might want my HB1 to be a Power Back, but for my HB2 to be a Receiving Back. It would be great to be able to set my scheme fit to look for such. This would allow me to focus my players better the way a real NFL team would, where not every player in a position has the same role.