Robot programming: Execution/debug feedback

[mayacakmak]

Currently when a program runs, there is no info on the robot programming tool about what is happening, would be useful to add:

• Make the program read-only while program executes, go back to editable when execution is done.
• Highlight (e.g. green) the line of the code that is currently executing
• Have a debug message window that displays stuff being printed onto the console during execution. For this we can go through the API implementation and replace console.log statements with something like displayDebugInfo and that function can both add the info the interface debug window as well as still print it in the console.