Copy system info to clipboard

[peteruithoven]

When reporting issues it's usually important to include system information. It would be quite useful if we could include a button that would copy "relevant" system info in text only form to the clipboard. Maybe it's even possible to add this as an action to the Applications menu, like "Screenshot of a Selected area" An example of what that content might be is what neofetch outputs:

$ neofetch
         eeeeeeeeeeeeeeeee            peteruithoven@xps
      eeeeeeeeeeeeeeeeeeeeeee         -----------------
    eeeee  eeeeeeeeeeee   eeeee       OS: elementary OS 0.4.1 Loki x86_64
  eeee   eeeee       eee     eeee     Model: XPS 15 9550
 eeee   eeee          eee     eeee    Kernel: 4.4.0-112-generic
eee    eee            eee       eee   Uptime: 16 hours, 25 mins
eee   eee            eee        eee   Packages: 3098
ee    eee           eeee       eeee   Shell: bash 4.3.48
ee    eee         eeeee      eeeeee   Resolution: 3840x2160
ee    eee       eeeee      eeeee ee   DE: Pantheon
eee   eeee   eeeeee      eeeee  eee   WM: Mutter(Gala)
eee    eeeeeeeeee     eeeeee    eee   Terminal: pantheon-termin
 eeeeeeeeeeeeeeeeeeeeeeee    eeeee    Terminal Font: Roboto Mono 10
  eeeeeeee eeeeeeeeeeee      eeee     CPU: Intel i7-6700HQ (8) @ 3.500GHz
    eeeee                 eeeee       GPU: NVIDIA GeForce GTX 960M
      eeeeeee         eeeeeee         GPU: Intel HD Graphics 530
         eeeeeeeeeeeeeeeee            Memory: 7444MiB / 32038MiB

My personal suggestion:

OS: elementary OS 0.4.1 Loki (Built on "Ubuntu 16.04.3 LTS")
Kernel: 4.4.0-112-generic
Widget toolkit: GTK+ 3.18.9
Desktop environment: Pantheon
Window manager: Mutter (Gala)
Shell: bash 4.3.48
Terminal: pantheon-termin
CPU: Intel i7-6700HQ (8) @ 3.500GHz
GPU: NVIDIA GeForce GTX 960M
Memory: 32 GB
Storage: 856,1 GB