add a way to activate a global devmode

[zhakk-harn]

Right now, I'm thinking about popping an empty gameobject called "Dev" at the top of the hierarchy and have all scripts checking if it exists and is active. If it does it helps with writing a logFile so it can be inspected while in or out or even on another machine by the staff

we'll probably need "Dev" to create a logFile and expose a function to write in there with timestamps and log levels. We'll probably need to insert some checks in the currently writen modules