[MC-117729] scoreboard players set, add, remove, reset and enable does not tab complete fake players

The bug

The /scoreboard players arguments

set
add
remove
reset
enable

do not tab complete fake players despite working for them. Since other arguments like test, list or operation tab complete fake players you would expect it to work for the above listed arguments as well.

How to reproduce

Add an objective
```
/scoreboard objectives add test dummy
```

Set for the fake player #fakePlayer a score

/scoreboard players set #fakePlayer test 1

Try to tab complete the fake player for one of the above listed arguments
```
/scoreboard players set 
```