Complete CommandService execution verification

[1ForeverHD]

See the following for what HD Admin did, although these are all likely covered in role[commands] (or user[commands]):

https://i.imgur.com/YO3CyME.png

To do:

• Create a TriStateBoolean - Yes, No, Unkown
• In verifyStatement, if 'Multiple' is returned for environment, block the execution and request the user specifies their desired state ('Global' or 'Private') - to achieve this, create a Player Setting for the 'desired environment'.
• If the desired environment is specified, and 'Multiple' is returned, now opt for the desired one and continue as normal.
• Move this block of code within TaskService to verify function in CommandService but also be considerate of Command.preventRepeats (test out on ;become command afterwards)