Sublime Text user experience

[dxb]

Thank you @amjadBHD

Also, someone looking for information about how to setup debugging with 
SublimeText + lldb may find the following useful:

Adding `"preRunCommands": ["command script import --allow-reload 
PATH_TO/nimlldb.py"]` to an lldb debug configuration does some symbol 
demangling.

Example:
    
    
            "debugger_configurations":
            [
                    {
                            "type": "lldb",
                            "request": "launch",
                            "name": "Launch",
                            [...]
                            "preRunCommands": ["command script import 
--allow-reload ~/.choosenim/toolchains/nim-#devel/tools/debug/nimlldb.py"],
                    }
            ],
    
    
    Run