[ENHANCEMENT] Option to use OwnerID instead of RosterID

[mharrison0224]

Is your feature request related to a problem? Please describe.
In redraft there is too much turnover, stats per "rosterID" do not translate well.

Describe the solution you'd like
Switch to OwnerID over RosterID when linking data to teams/managers.

Describe alternatives you've considered
Continue to use RosterID, but allow for instead a function to export previous league data into JSON files that we could edit to create fake rosterIDs like 99 to account for old teams no longer being ran by the same owner.

Additional context
I think by switching to OwnerID it also opens the potential to add more data in the future like (record against X manager). It also has the potential for us to add "previous managers" to our list of managers thus creating an even better reason to use this website vs just sleeperbot.

[nmelhado]

This was requested a long time ago and is a very good suggestion that would really enhance the league records. I think this is one of the higher impact enhancements that could be implemented.

[nmelhado]

I'll assign myself when I have the capacity to do this. If someone else wants to take this on in the meantime that would be great!

[nmelhado]

Underway!

This ended up being way more work than I expected, but I'm hoping to close it out in the next week or two.