integrate some speed limiter for up and download and also an option for max connections

[broken-trigger]

Is your feature request related to a problem? Please describe.
If your connection is used at 100 percent, everything else that uses your connection will get crippled e.g. voip, ..

Describe the solution you'd like
custom settings for

• up (speed)
• down (speed)
• max connections

Describe alternatives you've considered
Tell users to use qos on their router, which would make using gladius way to complicated.

Additional context