SE-0381: discardResults for TaskGroups

[ktoso (Konrad 'ktoso' Malawski 🐟🏴‍☠️)]

@tachyonics

Small nickpick: There is an inconsistency between Discarding[Throwing]TaskGroup and [Throwing]DiscardingTaskGroup

Thank you I’ll see that made consistent. I believe we wanted to go for “ThrowingDiscardingTaskGroup”