Include more detail on group contents in command group getName()

[Nadezaxer]

Currently most of the compost commands' (parallel, sequential, etc.) getName return just the compost command's name. I would like to see the getName method return more details on what command is internal running. The Repeat Command does exactly what I would like to see for the rest of the compost commands; where it is Repeat(InternalCommandName).

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Examples:

• SequentialCommandGroup: Sequential(CurrentCommand)
• ParallelCommandGroup: Parallel(CommandA, CommandB, CommandC)
• ParallelDeadlineGroup: ParallelDeadline(DeadlineCommand, CommandA, CommandB)

[Starlight220]

The name shouldn't be dynamic, but there's definitely room for improvement - both in the name as well as Sendable representations.