Feature request: show current namespace in a status bar

[fourier]

Describe the issue you are having

Ride is not presenting the current namespace. It would be nice to see the current namespace in a status line.
As a more advanced feature would be to present the list of namespaces to choose from/switch to by clicking on a current namespace in a status bar.

Did you connect to an already running interpreter or start the interpreter from RIDE?

Start an interpreter

How do you reproduce the issue?

Paste the contents of Help → About (Shift+F1)

IDE:
  Version: 4.1.3151
  Platform: Linux x86_64
  Date: 2018-04-20 17:00:22 +0200
  Git commit: 98cdb1278456012d2cc257831a253b58901a1a1a
  Preferences:{
    "blinkCursor":"0",
    "blockCursor":"1",
    "colourScheme":"Francisco Goya",
    "cursorBlinking":"solid",
    "kbdLocale":"en_US",
    "keys":"{\"BK\":[\"Ctrl-Up\"],\"FD\":[\"Ctrl-Down\"],\"LBR\":[\"F10\"],\"LL\":[\"Ctrl-A\",\"Home\"],\"RL\":[\"Ctrl-E\",\"End\"],\"SA\":[],\"TL\":[],\"PF10\":[]}",
    "otherExe":"/opt/mdyalog/16.0/64/unicode/mapl",
    "selectionHighlight":"1",
    "squiggleTips":"1",
    "zoom":"5"
  }

Interpreter:
  Version: 16.0.32456
  Platform: Linux-64
  Edition: Unicode/64
  Date: Mar 13 2018 at 03:31:46

[mbaas2]

It would also be handy to have that info available as {NSID} when setting Preferences > "Window title".