Updating the Code Parser in the Bricks Integrator

[LeonardPuettmannKern]

The code parser in the Bricks Integrator requires an update.

Constants that are parsed are cut off because the code parser still expects all constants to start with "YOUR_", which they do not anymore.

Also, the code parser adds an "optional": "false" to the output, which is redundant as the default state is false anyway.

Very minor issue and not urgent.