Feature: Download speed & Known devices

[realgooseman]

Hi @BornToBeRoot,

Very feature packed app. Great work.
I would like to suggest two new features, let me know what you think.

1. Improved IP Scanner / Device Manager

I used to use Fing to scan devices at home, to find known and unknown devices on the network.
It needs a sign up and is proprietary so stopped using it and switched to Angry IP Scanner, but much less feature packed.
Such feature is currently lacking in NetworkManager (I think). So implementing features similar to Fing would be great.

How will it work ?

Could be done by improving the IP Scanner, or creating a new tool called "Devices".
It would work like current IP Scanner but with these extra features :

• Option to rename scanned IP's to remember them (profiles are useful for multi-tool usage but direct renaming devices is better)
• Auto save known devices with their IP, custom name, MAC address, vendor in a config/backup file
• When scanning for devices and unknown/unsaved ones show up. Add option to make it a known device or leave it as is.
• Search bar to look if IP, Name or MAC Address is known in the active devices list
• (Optional) add option to replace icon of the active device to match it (phone, router, ...) - needs collection of default icons

2. Speed tester

A tool that can scan your internet speed and give information directly in the app.
Not as important as the first feature I suggested, but would be great to have as well.

How will it work ?

Speedtest tool would give information about :

• Download speed
• Upload speed
• Latency / Jitter
• Network provider / ISP
• Server location
• (Optional) Network quality score (streaming, gaming, chatting)

The best speedtester I found is the Cloudflare one. Gives the most information.
Could this repo help for implementation ? : Speed Cloudflare