A more explicit logging

[bertolla]

Logging should explain better what calls are made and how they resolve. Furthermore it should be possible to have an own logfile.

[ghost]

Hi,

for the graph part, one can change

const DEBUG = false;

to

const DEBUG = true;

in gfx.js to enable logging in the console.

-- Chris

[Piiit]

@bertolla Is this issue still open? Do we have all the logs that we need with the new version? I will add this to a future milestone for now