feat(TeamParticipants): store role data to LPDB

[ElectricalBoy]

Summary

This PR adds support for storing player roles to placement.opponentplayers from TeamParticipants.

How did you test this change?

preview with dev

[hjpalpha]

• why is this needed/wanted
• could we get length limit issues of the opponentplayers field due to this for cases where there are many players per opponent?

[ElectricalBoy]

why is this needed/wanted

#8017 depends on this

could we get length limit issues of the opponentplayers field due to this for cases where there are many players per opponent?

placement.opponentplayers doesn't seem to have a length limit specified according to Special:LiquipediaDB?
Might just need to throw role info to placement.extradata if there is a limit 🤷

[hjpalpha]

why is this needed/wanted

#8017 depends on this

could we get length limit issues of the opponentplayers field due to this for cases where there are many players per opponent?

placement.opponentplayers doesn't seem to have a length limit specified according to Special:LiquipediaDB? Might just need to throw role info to placement.extradata if there is a limit 🤷

if it has a length limit, it is a pretty big one
the question was about edge cases with e.g. >20 players per team opponent anyways

[hjpalpha]

code wise lgtm