Update sharp.cs
Update sharp.cs

[+] use of ManualResetEvents instead of Thread.Sleep
[+] Add Jitter to beacontime
[+] General tidy up

nettitude/PoshC2,nettitude/PoshC2,nettitude/PoshC2,nettitude/PoshC2,nettitude/PoshC2,nettitude/PoshC2