Initial POC of DF as a subprofile

[balsama]

We're in the process of rearchitecting Lightning to make it more compatible with true profile inheritance. DF is a good proving ground for this. I'm curious to see what the tests show

Notes:

• This changes how you include lightning components from opt in (in your current architecture) to opt out. I probably didn't get the opt out list quite right in your info.yml file.
• A lot of DF's modules list dependencies on lightning components that I didn't remove. I'm not sure what the best pattern is (whether to remove them or not) but it doesn't hurt to leave them for now.

[DevinCarlson]

This is now integrated from our side. We're looking forward to removing the shim with the next release of Lightning!