config.sh

* Structure for GPU project and configurations for Gray-Scott

* Fixed GS initial conditions in spectral mode

* Added Game-of-Life adjacent configuration for Gray-Scott

* Blobs evolving in different directions

* Added USkate world configuration for Gray-Scott

* Added script for scaling tests

* Changed configurations a bit

* Changed configurations

#!!!!!! WARNING: FLAKEHEAVEN FAILED !!!!!!: 

#:

* Changed configs

* Added readme for GPU project

* Implemented node limit in scaling

#!!!!!! WARNING: FLAKEHEAVEN FAILED !!!!!!: 

#:

---------

Co-authored-by: Thomas <t.baumann@fz-juelich.de>