Idea: make resolve support SteamID3

[PixelHir]

I noticed that resolve function doesn't work with SteamID3 like this: [U:1:128525166]

Would be great if we get feature like that

[eoussama]

While you're at that, make it support every possible identifier:

• Profile URL
• Profile permalink
• Steam ID
• Steam ID64
• Steam ID32
• Steam ID3

This page can be of good use: https://developer.valvesoftware.com/wiki/SteamID

I'll see if I can put out an implementation and then issue a pull request.